629results about How to "Avoid dust accumulation" patented technology

The invention discloses an SCR (Selective Catalytic Reduction) flue gas denitration system control method and apparatus. The SCR flue gas denitration system control method includes the following steps that: a first RBF neural network is adopted to obtain the predicted value of NOx generated after boiler combustion according to boiler operating parameters, the sampling concentration of NOx of an SCR flue gas denitration system; a second RBF neural network is adopted to obtain ammonia spray amount set values of ammonia spray valves for SCR flue gas denitration according to the predicted value of the NOx and the operating parameters of the SCR flue gas denitration system; and a DMC (Dynamic Matrix Control)-based ammonia spray amount controller is adopted to control total ammonia spray amount according to the ammonia spray amount set values of the ammonia spray valves so as to perform SCR flue gas denitration treatment. With the method and apparatus of the invention adopted, denitration efficiency can be effectively improved, and the escape rate of NH3 of the exit of the SCR denitration system can be reduced.

Fanned air generated by a fan to cool a motor is discharged from a housing through fanned air discharge ports toward an opening formed in a base. The fanned air discharged toward the opening is then introduced into a groove in fluid communication with the opening. The groove is formed in a bottom surface of the base and has an open side at a front side of the base. The fanned air is then discharged from the front side of the base, blowing off saw dust on a cutting object so as to prevent dust from accumulating on a marking line on the cutting object.

Fanned air generated by a fan to cool a motor is discharged from a housing through fanned air discharge ports toward an opening formed in a base. The fanned air discharged toward the opening is then introduced into a groove in fluid communication with the opening. The groove is formed in a bottom surface of the base and has an open side at a front side of the base. The fanned air is then discharged from the front side of the base, blowing off saw dust on a cutting object so as to prevent dust from accumulating on a marking line on the cutting object.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A feed chute having a transport spiral therein is operatively connected to the hopper for receiving pills therefrom. The transport spiral has an outlet and controllable aperture. A vibrating plate is disposed proximate the outlet. A drive mechanism is connected to the vibrating plate for imparting vibration thereto. The drive mechanism can abruptly stop the vibration of the vibrating plate. A microcontroller is also operatively connected to the hopper, the transport spiral, and the drive mechanism. The system can self-calibrate the mechanism for counting and dispensing pills.

The invention discloses a double-rotation SCR denitration method and an apparatus thereof. According to the invention, a first eddy flow catalytic reaction chamber and a second eddy flow catalytic reaction chamber are arranged along a denitrating tower body; a flue gas introduction pipeline is arranged on a sidewall of the denitrating tower body; several eddy flow atomizing nozzles are respectively arranged on inner periphery of the flue gas introduction pipeline and the inner periphery at top of the first eddy flow catalytic reaction chamber; when flue gas is introduced into the flue gas introduction pipeline, the flue gas and ammonia gas injected by the eddy flow atomizing nozzle are mixed, and a mixture enables spiral sinking along circumference of the first eddy flow catalytic reaction chamber from up to down in a tangent circle mode, under effect of a cyclone, and then the mixture enable spiral rise along circumference of the second eddy flow catalytic reaction chamber from down to up in the tangent circle mode. Under prerequisite that high efficiency denitration is ensured, catalyst amount is less, operation of technical means is simple and easy, compared with the prior art, a denitrating tower structure is simple, cost of the apparatus is low, denitration efficiency is high, energy consumption is low, escapement ratio of ammonia is reduced, denitration cost is greatly reduced, and economic benefit is obviously increased.

The invention discloses an efficient multi-field-coordination fine particulate matter removal device and an efficient multi-field-coordination fine particulate matter removal method. The device comprises an outer field coagulation area, a direct current dust pre-collecting area, a pulse charge coagulation area and a direct current dust collecting area which are connected in sequence, wherein water steam and a chemical agglomeration agent are introduced from a nozzle of the outer field coagulation area respectively; the direct current dust pre-collecting area and the direct current dust collecting area are arranged in a line-plate type symmetric structure, a line electrode applies negative direct current high voltage, and a plate electrode is grounded and adopts layout of a water film electrode; the pulse charge coagulation area is arranged in the line-plate type symmetric structure, the line electrode applies positive pulse high voltage, and the plate electrode is grounded and adopts layout of the water film electrode. The device and the method aim at mineral particulate matters discharged by a fixed source; aerosol particulate matters, particularly fine particulate matters, can be subjected to efficient coagulation removal in a structural form of double coagulation areas and double dust collecting areas by using a multi-field-coordination method combined by a phase-change coagulation growth technology, a chemical agglomeration and flocculation mechanism and an electric coagulation technology, so that the phenomena of back corona, re-entrainment of dust, ash deposition and corrosion of the plate electrode are effectively avoided.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A feed chute is operatively connected to the hopper for receiving pills therefrom. The feed chute has an outlet and controllable aperture. A vibrating plate is disposed proximate the outlet. A drive mechanism is connected to the vibrating plate for imparting vibration thereto. The drive mechanism has a mechanism for abruptly stopping the vibration of the vibrating plate. A microcontroller is also operatively connected to the hopper, the feed chute, and the drive mechanism.

An medical supply unit is disclosed. The medical supply unit has a tank, a manual control mechanism for controlling location-movement or location-locking of the tank, and a horizontal arm. The medical supply unit also has a vertical arm, an elbow joint part that connects the horizontal arm and the vertical arm, and a rotary shaft for movable connection of the vertical arm, in which the rotary shaft movably connects to one end of the elbow joint part via the vertical arm, wherein another end of the elbow joint part connects to the tank via the horizontal arm, and a first end of the tank is attached to the manual control mechanism.

The invention relates to an electronic policeman for intelligent traffic, which includes a cross plate, a processor, a shield, several monitoring mechanisms, two bases, two struts and two struts; themonitoring mechanism includes a camera, a flash light and a cleaning box; a clean assembly is arranged in the cleaning box; a clean assembly includes a lifting unit, a lifting lever, a lifting plate and a cleaning unit; a drying mechanism is arranged on the side of the shield close to the camera, a dry mechanism includes a translation assembly, a translation plate, a telescopic assembly, a dryingbox, an intake pipe and a spray head; the electronic police used for intelligent traffic takes photos of vehicles violating road rules and regulations through a monitoring agency, a surface of that flash lamp is cover with a cleaning plate in the daytime to prevent the flash lamp from accumulating dust, thereby ensure the light replenishment ability of the flash lamp at night, moreover, the cameraand the surface of the flash lamp are dried and defogged by a drying mechanism in a rainy weather to ensure the supervision ability of the electronic police, thereby improving the practicability of the equipment.

A dispensing device of portable terminals for acquiring product data in a shopping centre comprises a plurality of static cradles for a corresponding plurality of portable terminals. The terminals are adapted to be withdrawn and used by the customers for acquiring product data. The dispenser has a customer verification unit which identifies each customer enabled to the use of the portable terminals, a communication unit for communicating to each identified customer a terminal to be withdrawn for carrying out the product data acquisition, and a control and data processing unit adapted to control the customer verification unit and the communication unit and to process the product data acquired through said terminals. The plurality of cradles is housed into a substantially flat portion of the container provided in close proximity of the customer identification means so as to allow access to the plurality of terminals.

A suction brush assembly comprises an assembly body having a suction inlet for drawing in dust on a surface being cleaned, a cover connected to the assembly body and having an opening for drawing in an external air, and a rotation body rotatably mounted to the assembly body and mounting a detachable cleaning member at a lower part thereof for contact with the surface being cleaned. The external air drawn in through the opening flows out to a lower part of the assembly body through a gap formed between the rotation body and the assembly body. Accordingly, the dust can be prevented from flowing into the rotation body, thereby improving an efficiency of a cleaning work.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A transport tube receives pills from the hopper. The transport tube has a controllable aperture for facilitating or inhibiting delivery of pills to the transport tube. A microcontroller is also operatively connected to the hopper, the transport tube, and the input aperture. Optionally, a feed chute can be operatively connected between the hopper and the transport tube. The system can self-calibrate the mechanism for counting and dispensing pills by dynamically adjusting the input aperture based upon the stored information representative of the pulse width signal and the amplitude signal.

The invention relates to a clean intelligent-type urban greening bus station with the good rain sheltering effect. The clean intelligent-type urban greening bus station comprises a base, a rainproof mechanism, a lifting mechanism, a back plate and a plurality of waiting units. The rainproof mechanism comprises a first driving motor, a buffer block, a first driving shaft, a roller, a rainproof filmand a plurality of sliding rings. The lifting mechanism comprises a top rod, a lifting assembly, a movable rod, a bottom rod and a plurality of fixing rods. Each waiting unit comprises a sitting plate, two connecting units and two driving units. According to the clean intelligent-type urban greening bus station with the good rain sheltering effect, when the waiting units are used, the sitting plates are made to rotate downwards through the driving units, people can sit down and wait for buses conveniently, and when no person stays in the bus station, the sitting plates are made to rotate upwards, the front faces of the sitting plates abut against the back plate so as to prevent dust accumulation, and thus the sitting plates are kept clean. In addition, the rainproof film is driven by therainproof mechanism to flap down and fixedly supported by the lifting mechanism so as to be prevented from being blown by wind, thus the bus station forms a closed environment, and the good rain sheltering effect is guaranteed.

The invention discloses an outdoor charging pile for new energy vehicles. The outdoor charging pile comprises a fan, a sliding door, a charging pile main unit, a sliding base, a water receiving bucketand a bottom box, wherein the sliding base is fixedly mounted at the top of the bottom box; a left side plate is fixedly mounted at the left side of the top of the sliding base; a right side plate isfixedly mounted at the right side of the top of the sliding base; a rear end plate is fixedly mounted at the rear end of the top of the sliding base; the left side plate, the right side plate and therear end plate form a cavity; a top plate is fixedly mounted at the top of the cavity; the fan is fixedly mounted at the top of the top plate; the charging pile main unit is slidably mounted at the top of the sliding base; the charging pile main unit is positioned inside the cavity; and a winder and a charging gun mounting frame are fixedly mounted at the front end of the charging pile main unit.The outdoor charging pile for the new energy vehicles can prevent the charging pile main unit from being exposed so as to prolong the service life of the charging pile main unit, and has good heat dissipation, ventilation and dust removal functions so as to avoid dust accumulation of the charging pile main unit and provide a guarantee of safe charging for the new energy vehicles.

The invention discloses a louver fin and a heat exchanger adopting the louver fins, in particular to a microchannel heat exchanger, and solves the technical problem that fins of the conventional heat exchanger have high possibility of ash clogging, resulting in lowered performances of the heat exchanger. The louver fin provided by the invention includes a base sheet and louvered fins formed on the base sheet, wherein an air flow passage is formed between the adjacent louvered fins; and flow guide projections are arranged on the base sheet, and correspond to air inlets of the air flow passages. The louver fin provided by the invention can be applied to various heat exchangers and microchannel heat exchangers in the field of household / commercial air conditioners, can remarkably improve the ash accumulation of the air side of the heat exchanger, and improves the heat exchange performance of heat exchangers, particularly the microchannel heat exchangers.

The invention discloses a coking and slagging robot processing system for a high-temperature hearth of a coal fired power plant boiler. A robot body is externally and sequentially provided with an insulation layer, an inner wall, a cooling water interlayer and an outer wall from internal to outside, wherein a short-range nozzle and a long-range nozzle are arranged on the outer wall; the front part of a main CCD (Charge Coupled Device) camera is provided with a high-temperature resistant anti-reflection LOW-E membrane, and the rear part of the main CCD camera is provided with a cooling fan; an inner high-temperature resistant insulation layer, an outer high-temperature resistant insulation layer and a middle vacuum thermal-protective layer are arranged in a visualized imaging system, an inner layer of the inner high-temperature resistant insulation layer is provided with an air forced convection cooling structure, and an outer layer of the outer high-temperature resistant insulation layer is a glass LOW-E membrane coating. The coking and slagging robot processing system can normally operate in a flow field at a temperature ranging from normal temperature to 1200 DEG C, can visually reflect depositing and slagging conditions of the power plant boiler at any time, can also be used for processing the depositing, coking and slagging conditions, can effectively prevent accidents of tube explosion and the like, and can effectively avoid abnormal working conditions such as heat deviation, unstable hydrodynamic force, pulsation among pipes, water circulation stagnation and water backflow, and the like caused by uneven heating of a heat exchanging surface due to depositing, coking and slagging.

The invention discloses a rotational flow plate type SCR denitration tower and a denitration method thereof. The denitration tower comprises a denitration tower body and a corrugated plate type catalyst layer arranged along the inner circumference face of the denitration tower body, and the corrugated plate type catalyst layer forms a flue gas channel. A plurality of layers of rotational flow atomizing nozzles performing jetting in the contact circle direction are distributed on the circumference face of the corrugated plate type catalyst layer from bottom to top. When flue gas enters the flue gas channel from the bottom of the denitration tower body, and the flue gas encounters ammonia gas jetted by the whirlwind atomizing nozzles, the flue gas and the ammonia gas are mixed in an entrainment mode and spirally raises in the inner circumference direction of the flue gas channel in a contact circle mode because the ammonia gas is jetted in a rotational flow mode in the contact circle direction. On the premise that efficient denitration is guaranteed, the catalyst use amount of the denitration tower is small, the technical means is easy and convenient to use. Compared with the prior art, the denitration tower is simple in structure, low in manufacturing cost, high in denitration efficiency and low in energy consumption, reduces the ammonia escape rate, makes denitration cost greatly reduced, and remarkably improves economic benefits.

The invention relates to a semi-tower type medium-temperature separation biomass circulating fluidized bed boiler, composed of a front shaft, a middle gas-solid separating and recycled material returning unit, and a tail flue, wherein the front vertical well comprises a hearth, a convection shaft and a smoke reversing chamber; the middle gas-solid separating and recycled material returning unit comprises a gas-solid separating device, a returning riser and a returning device; a super-heater, an economizer and an air pre-heater are arranged along a smoke flowing direction in the tail flue; a lower portion of the hearth is provided with 2 to 3 layers of secondary air along a height direction; an upper portion of the hearth is provided with a convection heated surface in the convection shaft; the hearth, the convection shaft, the smoke reversing chamber, the gas-solid separating device, the returning riser and the returning device compose a main circulation loop. According to the invention, adaptability of fuels is wide; combustion efficiency is high; abrasion and corrosion for the heated surface is poor; temperature of the smoke at an inlet of the gas-solid separating device is within a range of 400-750 degrees centigrade so as to effectively prevent slagging, slag hanging, dusts gathering, ashes blocking, bed materials blocking and returning device blocking in the boiler.

A suction brush assembly comprises an assembly body having a suction inlet for drawing in dust on a surface being cleaned, a cover connected to the assembly body and having an opening for drawing in an external air, and a rotation body rotatably mounted to the assembly body and mounting a detachable cleaning member at a lower part thereof for contact with the surface being cleaned. The external air drawn in through the opening flows out to a lower part of the assembly body through a gap formed between the rotation body and the assembly body. Accordingly, the dust can be prevented from flowing into the rotation body, thereby improving an efficiency of a cleaning work.

A device for air-cooling an electronic apparatus, where a suction opening (4) is provided in a housing (1), discharge openings (5) are provided in housings (1, 2), an airflow passing the inside of the housings is generated by a fan (6), and heat produced by a heart-producing body (9) is released to the outside of the housings by the airflow. Air introduction plates inclined to change the direction of the airflow are arranged at the suction opening (4), and a large number of projections are formed on the surfaces of the air introduction plates. The device for air-cooling an electronic apparatus has increased capacity for cooling a heat-producing part without increase in the size of the device, and in the device, accumulation of dust on the heat-producing part can be prevented.

The invention relates to a detection device and a detection method of the weft breakage of a double-axis warp knitting machine. The detection device comprises a programmable computer controller, an input / output module and an irreflexive photoelectric sensor, wherein the programmable computer controller is connected with the input / output module through communication; and the irreflexive photoelectric sensor comprises an infrared transmitter module and an infrared receiver module which are connected with the input / output module through communication respectively. The detection method using the detection device comprises: setting the rotation period TR of the spindle of the double-axis warp knitting machine as D / RI; setting a yarn hanging mode M; detecting if a weft is broken according to the detected position of the weft by the programmable computer controller; and when the programmable computer controller determines the weft is broken, stopping the machine (including emergently stopping the machine) and stopping the weft breakage detection function. The detection device of the invention is simple in structure; and the effect of the detection of weft breakage by the detection methodis desirable.

The invention discloses a protection device for a charging pile power supply. The protection device comprises a fixed seat, a housing and a device body, wherein the housing and the device body are both in a cavity structure; the fixed seat is fixed on the bottom end of the housing; the device body is disposed in the housing; a ventilating port is formed in the top end of the housing; a top lid ishinged to the top end of the device body; a plurality of heat radiation holes arrayed in a straight way are formed on the tops of the two sides of the device body; heat radiation fans are mounted on the inner walls of the two sides of the device body; the heat radiation fans are corresponding to the heat radiation holes; two fixing blocks are arranged in the middle of the bottom end of the devicebody; the fixing blocks are arranged on two sides of the bottom of the device body; an elevating plate is horizontally connected between the two fixing blocks; and a vertically-arranged air cylinder is fixed in the middle of the top end of the fixed seat. The protection device is rationally designed and simple to operate, has obvious heat radiating effect, protect the power supply from damages, and can effectively prolong service life of the power supply.

The invention relates to an intelligent device with blackboard wiping and dust absorbing functions. The intelligent device comprises a board body, a shell, a center control mechanism, a displacement mechanism, a wiping mechanism and a dust absorbing mechanism. The displacement mechanism comprises a movement assembly and a telescopic assembly. The wiping mechanism comprises a swing assembly and a fastening assembly. The dust absorbing mechanism comprises a dust absorbing pipe, a lantern ring, a curved bar, a lifting assembly and a reciprocating assembly. In the intelligent device with the blackboard wiping and dust absorbing functions, manual blackboard wiping is avoided through the wiping mechanism, and the intelligent device is more convenient and faster; through the fastening of clampingclaws, a blackboard eraser is replaced conveniently, and the situation that the blackboard is not wiped completely after the blackboard eraser is used for a long time is prevented; through the dust absorbing mechanism, the concentrated dust can be absorbed, the air environment of a classroom can be clean and neat, influences of the dust on the eyes and the respiratory tract are lowered, and thusthe physical health of students and teachers in the learning process is guaranteed; and through the mechanisms, the practicability and safety of the device are greatly improved.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A transport tube receives pills from the hopper. The transport tube has a controllable aperture for facilitating or inhibiting delivery of pills to the transport tube. A microcontroller is also operatively connected to the hopper, the transport tube, and the input aperture. Optionally, a feed chute can be operatively connected between the hopper and the transport tube. The system can self-calibrate the mechanism for counting and dispensing pills by dynamically adjusting the input aperture based upon the stored information representative of the pulse width signal and the amplitude signal.

The invention discloses a method for removing gas-phase potassium ions in biomass flue gas by utilizing ammonium phosphate. The method comprises the following steps of: adding quantitative ammonium phosphate additive onto a material layer of a fire grate of a boiler or into the hearth of the boiler by virtue of a spraying device in a biomass combustion device, and carrying out a reaction on the ammonium phosphate additive as well as gas-phase potassium chloride and potassium carbonate in the flue gas at a set temperature to generate potassium phosphate, so as to remove the gas-phase potassium ions in the biomass combustion flue gas. By adopting the method for removing gas-phase potassium ions in biomass flue gas by utilizing ammonium phosphate, potassium ions in the flue gas when biomass fuel combusts can be effectively removed, the problems that ash is deposited on a biomass boiler heating surface and the biomass boiler heating surface is slagged and corroded can be avoided, and removal of NOx can be promoted by amino groups produced when ammonium phosphate is heated and decomposed.

The invention relates to a stage blowback dust-cleaning method of an air box blowback bag type dust collector, and the air box blowback bag type dust collector, and the method includes the following steps: (1) closing an air exhaust valve of a dust collection bag chamber of the collector, and opening a reverse blow valve; (2) setting the initial wind speed of a back blower to 0.3-2 times as high as the filtering wind speed to blow back the dust collection bag in the dust collection chamber, with blowback time being 0.5-5 s; (3) increasing air quantity of the back blower to 1-5 times as large as the filtering wind speed; (4) continuing to blow back the dust collection bag, with blowback time being 2-60 s, and finishing the dust collection. The stage blowback dust-cleaning method in the invention can enhance blowback dust-cleaning effect of air box blowback bag type dust collector, ensure external surface of the dust collection bag to be thoroughly cleaned, avoid dust deposition phenomenon at bottom of the dust collection bag, and improve dust collection efficiency. In addition, the dust collector used in the stage blowback dust-cleaning method is characterized by simple structure, reasonable design, convenient use, and energy saving.

The invention relates to the field of environment-friendly appliances, particularly an industrial dust remover. The industrial dust remover comprises a shell, a water sprayer, a dust remover, a collecting device, a baffle plate, a blower and a controller, wherein the shell is provided with a gas inlet channel and a gas outlet channel; the gas outlet channel is connected with the blower; and the blower is used for drawing out the purified gas. The industrial dust remover is characterized in that traveling wheels are arranged under the shell; the water sprayer is installed on the top of the shell, and used for settling dust obtained by the collecting device and cleaning the collecting device; the dust remover is installed in the upper position inside the shell, and used for removing dust in the gas; the collecting device is used for collecting and storing the dust generated in the dust removal process; the baffle plate is installed inside the shell in the position adjacent to the gas inlet channel; and the bottom of the baffle plate is arranged obliquely. The industrial dust remover is used for reducing the dust discharge amount in industrial production, can enhance the dust settling rate and clean the collecting device, and has better filtering effects.

The invention relates to a gas mixing method. According to the gas mixing method, two types of gas are sufficiently mixed by utilizing a gas mixer; a flow guide body with a specific ratio is arranged in a mixing cylinder of the gas mixer, and two gas inlet pipelines and one gas outlet pipeline are adapted, so that two paths of circulating gas can be sufficiently mixed, and furthermore, the effect of resistance loss of the two paths of gas flow is reduced. The gas mixing method provided by the invention can be suitable for a mixing process of various types of flue gas in an industrial production field, and is particularly suitable for mixing sintering circulating flue gas and ring cooling circulating hot waste gas, and mixing the sintering circulating flue gas and air in a sintering flue gas circulating process.

The invention discloses a denitrating coal economizer coal economizer high-temperature bypass device which comprises a coal economizer and a coal economizer bypass flue, wherein the inlet end of the coal economizer bypass flue is connected with one side of the coal economizer; an electrically operated baffle door is arranged at the inlet end of the coal economizer bypass flue; a coal economizer inlet is formed in the top of the coal economizer; a coal economizer outlet is formed in one side of the bottom of the coal economizer; a coal economizer ash hopper is arranged at the bottom of the coal economizer; the coal economizer outlet and the outlet end of the coal economizer bypass flue are connected with a vertical flue; an ammonia spraying grating is arranged on the vertical flue; a first horizontal flue is connected with the top of a denitrating reactor; a denitrating reactor inlet ash hopper is arranged at the bottom of a second horizontal flue; the bottom of the denitrating reactor is connected with a denitrating reactor outlet flue; and the denitrating reactor outlet flue is connected with an air preheater. The denitrating coal economizer coal economizer high-temperature bypass device provided by the invention has the beneficial effects that the necessary denitrating efficiency can be guaranteed, and the generation of sulfate and ammonium hydrogen sulfate can be inhibited; and large-grain ash slag in smoke can be removed, so as to avoid obvious hole blockage and erosion to a catalyst.