188results about How to "Improve the quality of the working environment" patented technology

A powder recycling system includes a powder feeder, a remaining powder collector, a bridge breaker, a block powder filter, a cyclone separator, a particulate filter cleaner, an air pressure generation device and an electrostatic precipitator. The powder feeder provides a construction powder to a construction platform. The remaining powder collector for collects the remaining powder. The cyclone separator is used to separate the large-size powdery particles and the small-size powdery particles of the remaining powder from each other through a rotating gaseous stream. The large-size powdery particles fall down to the powder feeder due to gravity, and the small-size powdery particles of the remaining powder is removed from the rotating gaseous stream and transmitted to the particulate filter cleaner. After the small-size powdery particles of the remaining powder are filtered by the particulate filter cleaner, the suspended small-size powdery particles are transmitted to the electrostatic precipitator.

The invention relates to an in-situ warm-mixing regenerant for a bituminous pavement, and a preparation method and a construction method of the in-situ warm-mixing regenerant. The strength of a cold-regenerating mixture is longer in formation time; a finish coat in a certain thickness is required to be paved additionally; the property of the regenerated mixture is poorer; a lower level cold mixing technology is used generally; and cement is required to be added generally, so that the durability of the level is reduced. The in-situ warm-mixing regenerant for the bituminous pavement comprises the following raw materials in parts by mass: 10-30 parts of naphthenic hydrocarbon, 20-40 parts of furfural extract oil, 30-50 parts of deionized water, 10-20 parts of microwave absorption agent, 5-10 parts of surfactant, 5-10 parts of dispersing agent and 1-5 parts of antiaging agent. According to the in-situ warm-mixing regenerant, the preparation method and the construction method, the mixing cost can be lowered; the construction efficiency is improved; a use ratio of old materials is increased; compared with in-situ heat regeneration, the ageing of a bituminous mixture is reduced; the service life of the pavement is prolonged; a cooling rate is reduced; the discharge amount of harmful gas and dust is decreased; new aggregates and new bitumen are not required to be added; and the material cost is lowered.

The present invention relates to an infrared radiant ceramic glazed layer and its preparation method. The main composition of said glazed layer in includes potash feldspar, SiO2, CaCo3, ZnO, talcum, ZrSiO4, clay BaCO3, opaque frit, colouring agent and infrared radiannt ceramic powder. The invention adopts ceramic processing technique, and makes said materials into the invented infrared radiat ceramic glazed layer with the obvious bacteria-inhibiting action for mould, Gram-positive bacterium and Gram-negative bacteruim, and its bacteria-inhibiting rate is up to 91.87%-100%. It can be used in building ceramics, specially used in the places of kitchen, toilet, hospital, infant school and others, so that it possesses strong practicability.

The invention discloses an ultrafine pulverizer. A gear ring of a pulverizing mechanism of the ultrafine pulverizer is formed by connecting and splicing a plurality of identical gear ring arc sections end to end; inclined teeth inclining towards the axial direction of the gear ring are arranged in the arc sections of the gear ring; alloy strips are arranged on the inclined teeth by oxygen welding; a plurality of grooves are formed in the alloy strips; a dentoid structure is arranged on one side, facing to the gear ring, of each hammerhead; the dentoid structures are inclined teeth inclining towards the normal direction of a wearproof tray; and the inclination directions of the inclined teeth on the hammerheads are opposite to those of the inclined teeth on the gear ring. According to the ultrafine pulverizer, with the adoption of the inclined tooth structures of the gear ring and the hammerheads, the impact of a high-speed air flow on materials in the pulverizer is improved, and the collision and the friction among materials are increased, so that the pulverizing efficiency and effect are improved effectively; the yield by the pulverizer is increased; the abrasion performances of the hammerheads and the gear ring are improved with the adoption of the alloy materials; the service life of the hammerheads and the gear ring is further prolonged; and the maintenance cost is reduced.

The invention discloses an energy-saving environment friendly production method of a concrete lining segment. The energy-saving environment friendly production method comprises the following step of: carrying out dry-wet-heat curing on concrete after pouring, wherein the dry-wet-heat curing is finished in a sealed curing kiln and comprises four stages of static curing, heating, constant temperature keeping and temperature reducing. According to the energy-saving environment friendly production method of the concrete lining segment, disclosed by the invention, all procedures are connected closely and smoothly, wherein the dry-wet-heat curing directly ensures large shortening of curing time because of creation of a technical method, and compared with a traditional steam curing of keeping the constant temperature for 4h and total curing time of 8-10h, the energy-saving environment friendly production method disclosed by the invention has the advantage that the speed is largely accelerated, in addition, standing temperature reduction ensures that segment concrete is secondarily cured and is fully reduced in temperature, thus a quality defect due to an inner stress is avoided, the quality of products is improved, and good support is provided for long-term safe usage of the concrete lining segment.

The invention discloses a construction method of a warm mix asphalt concrete pavement of a municipal road. The construction method comprises the following steps: 1, reforming and adjusting the traditional mixing equipment; 2, determining the construction temperature of a warm mix mixture; 3, mixing the mixture; 4, transporting the warm mix mixture to the construction position; 5, paving the warm mix mixture; 6, compacting the paved warm mix asphalt mixture. Compared with the prior art, the construction method has the beneficial effects that the mixing cost and production consumption of the asphalt mixture are lowered, the ageing is alleviated, the pavement performance is improved, the emissions of harmful gas and dust are reduced, the environmental pollution is lowered, and the working environment quality of a worker is improved.

The invention discloses a tunnel construction method with a shield method and a new Austrian tunneling method being combined. The tunnel construction method comprises the following steps: S1, excavating a tunnel; S2, carrying out preliminary bracing construction; S3, pushing a shield tunneling machine ahead for an excavation length; S4, repeating the step from S1 to the step S3, carrying out tunnel excavation cycle operation till the tunnel runs through, wherein pavement of waterproof boards in the tunnel and secondary lining construction are carried out in the tunnel excavation process. According to the tunnel construction method disclosed by the invention, the new Austrian tunneling method construction and the shield mehtodconstruction are beneficially combined to realize safe and fast construction of the tunnel, and meanwhile, the tunnel construction cost is controlled to be within an economic and reasonable range. Due to the adoption of fully-mechanized operation, the manual operation intensity is greatly reduced, the safety of a tunnel operation environment is guaranteed powerfully, and the quality of the operation environment is remarkably improved.

The invention discloses a laser cutting machine with a safety protection device. The laser cutting machine comprises a box body, a safety cover, a dust hood and a filter screen. The filter screen is arranged on the inner side of the box body and is cylindrical. One side of the filter screen is provided with an exhaust fan. A flow guide cover is connected to the filter screen. A workbench is arranged above the flow guide cover, and through holes are uniformly distributed in the workbench. According to the laser cutting machine, suction force is generated through the operation of the exhaust fan; when a workpiece is cut by a cutting head, smoke in the cutting process is subjected to flow guide adsorption through the dust hood above the cutting head, the flow guide cover below the workbench is used for conducting flow guide adsorption on dust below the workpiece, and the dust enters the filter screen to be filtered, so that dust pollution in the cutting process is reduced, and the workingenvironment quality is improved; the box body is in a closed state through the safety cover, the cutting process is checked through a perspective window, splashing sparks in the cutting process are prevented from flying all around and scalding operators, and operation safety is improved.

The invention discloses a small polishing rust-removal device special for kitchen hardware. The small polishing rust-removal device comprises an operating table, a supporting frame and a polishing machine head, the supporting frame is mounted on the operating table, the polishing machine head is mounted on the supporting frame, the operating table is provided with a clamping fixing mechanism, an adjustable polishing mechanism is arranged on the supporting frame and connected with the polishing machine head, and the operating table is provided with a centrifugal dust removal mechanism. By arranging the clamping fixing mechanism on the operating table, to-be-polished hardware workpieces are clamped, meanwhile, the angle of the polishing machine head is correspondingly adjusted through cooperation of the adjustable polishing mechanism to polish different parts of the to-be-polished workpieces, chippings and powder generated in the polishing process are collected and treated through cooperation of the centrifugal dust removal mechanism, thus the effect environmental quality is improved, the structure is simple, and controllability is high.

The invention discloses a crushing and shaping integrated production line and relates to the technical field of powder equipment. The crushing and shaping integrated production line comprises a crushing and shaping integrated machine; a crushing and shaping device and a grading device are mounted in a cylinder body of the crushing and shaping integrated machine; the crushing and shaping device comprises a wind wheel, a crushing disc and a shaping hammerhead which is fixedly arranged on the inner wall, corresponding to the crushing disc, of the cylinder body; the grading device comprises an impeller; a material inlet is formed in the cylinder body between the crushing disc and the impeller; a fine powder outlet is formed in the cylinder body between the impeller and a second power device; a coarse powder material outlet is formed in a position, corresponding to the crushing disc, on the cylinder body. The crushing and shaping integrated production line disclosed by the invention has the advantages that crushing, shaping and grading functions are simultaneously achieved; the whole crushing and shaking process is carried out in one closed equipment so that material overturning is avoided and material pollution caused by mixing other materials in the material in the overturning process is completely eliminated; product quality is improved; the crushing efficiency is enhanced.

The invention relates to a quartz mineral purification flotation agent. The quartz mineral purification flotation agent comprises, by percentage, 20% to 30% of mixed amine, 30% to 40% of petroleum sodium sulfonate, 5% to 10% of hydroximic acid and 30% to 40% of industrial alcohol; and in each ton of quartz sand, 0.5 kg to 1.5 kg of flotation agent is contained. The quartz mineral purification flotation agent has the beneficial effects that a floating agent mixture is stable in property, selectivity is good, the impurity removal effect is obviously superior to that of products of the same type, water solubility is good, environment temperature adaptation is high, mixing and mutual dissolution in any proportion to water can be achieved at the environment temperature, the adaptation of a reagent is wide, the good impurity removal purification effect is achieved, the purification efficiency is high, the use amount is small, in each ton of quartz sand, the use number of purification flotation agent ranges from 0.5 kg to 1.5 kg, the mineral separation cost is greatly reduced, no pungent smell exists, the work environment quality of production operators is obviously improved, and the use number of flotation agents is small.

The invention discloses an irrigation-fed filter. The irrigation-fed filter structurally comprises an automatic effective filter mechanism, an air inlet channel, a rotary arm, a handle, a hand wheel,a lifting rod, a sealing cover, an air outlet channel, a sewage discharge channel and more than two supporting racks, wherein the supporting racks are separately welded to the surface of the bottom ofthe automatic effective filter mechanism; the upper end of the sewage discharge channel is fixedly welded to the bottom end of the automatic effective filter mechanism, and the inside of the sewage discharge channel communicates with the automatic effective filter mechanism; and the size of the air inlet channel is consistent to that of the air outlet channel. The irrigation-fed filter extends out through a lifting cylinder, a scraper blade is in contact with a second filter screen, a third filter screen and a fourth filter screen, a lead screw drives the scraper blade to move back and forthto scrape impurities to one side with a sealing door, in an impurity cleaning process, the sealing door is open, the impurities are driven by the scraper blade to enter an impurity transition box, andthen flow into an impurity collecting box through a connecting tube, gas discharged from a gas discharge tube enters a container filter, and therefore, the quality of a working environment of a useris improved.

The invention discloses a grounded flat iron processing and manufacturing platform, which is used for solving the technical problems of low flat iron manufacturing mechanization degree, poor manufacturing quality, low work efficiency and the like in the prior art. The grounded flat iron processing and manufacturing platform comprises an operation platform and a spraying brushing mechanism, wherein a hole punching mechanism and a bending mechanism are arranged on the operation platform; the hole punching mechanism comprises a base, a hole punching machine, a support block and a positioning block are arranged at the upper part of the base; the support block is positioned at one side of the hole punching machine; the positioning block is positioned at the other side of the hole punching machine; the bending mechanism comprises a support seat; a bending machine, a positioning plate and a fixing plate are arranged on the support seat; the positioning plate is positioned at one side of the bending machine; the fixing plate is positioned at the other side of the bending machine; the spraying brushing mechanism comprises a spraying and brushing support frame; a fixing seat and a support plate are arranged on the spraying and brushing support frame; paint blocking plates are arranged on the fixing seat at intervals; a cover plate is arranged on the support plate. The fast and precise hole punching bending can be realized; the phase color mark can be formed in one step; the manufacturing time can be reduced from the original 50 minutes to 5 minutes; the work efficiency is improved by 10 times and the quality of the workpiece is ensured.

The invention discloses a shielding device for an atomized cutting fluid. The shielding device is mounted on numerical control machine tool equipment, and comprises a solenoid valve, a flow control valve, a wind shield pipe, a power supply controller and atomized water adsorption equipment, wherein one end of the solenoid valve is connected with the power supply controller, and the other end thereof is connected to a gas inlet of the flow control valve through a communicating pipe; the solenoid valve is used for controlling the opening or closing of compressed gas; one end of a gas outlet of the flow control valve is respectively connected with two ends of the wind shield pipe through communicating pipes; the flow control valve is used for adjusting the flow rate and the shunting of the compressed gas; a wind outlet is formed in the wind shield pipe; compressed gas forms an invisible wind shield at the wind outlet; the atomized water adsorption equipment is arranged at the top of a machine tool, and is used for adsorbing the atomized cutting fluid sprayed from the top of the machine tool. According to the shielding device, the problem that the cutting fluid, produced during the machining process of a conventional numerical control machine tool, is easy to destroy the environment quality of a production workshop and also brings severe harm to the health condition of operators is solved.

The invention discloses new energy environment-friendly power battery aluminum shell cleaning equipment, which comprises a case, and is characterized in that a motor is mounted in the middle of the upper surface of the case; a feeding hopper is arranged on the side, which is close to the motor, of the upper surface of the case; an exhaust port is formed in the side, which is opposite to the feeding hopper, of the upper surface of the case; a cleaning box is mounted in the case; heating layers are arranged on two sides of the inner wall of the upper half section of the cleaning box; and a stirring roller rotationally connected with the motor is mounted in the middle of the top end in the cleaning box. The equipment is provided with an electric telescopic rod, a push plate and a brush strip,so that the cleaning of the bottom in the cleaning box is realized, the pipeline is prevented from being blocked to affect the discharge of materials and waste, and the processing efficiency of the equipment is improved; and the equipment is provided with a silencing plate composed of a vacuum layer, a honeycomb plate, a foam layer and an inverted horn, and sound absorption and noise reduction are achieved by means of the principle that sound is amplified in the forward direction and silenced in the reverse direction in the horn, so that the working environment quality of workers is improved,and the workers are facilitated to work.

The invention discloses a meat smashing machine for food processing workshop. The meat smashing machine comprises a machine cabinet. A feeding hopper is arranged in the middle position of the upper surface of the machine cabinet. A partition plate is installed in the middle position in the machine cabinet. A smashing chamber is arranged above the partition plate. A feeding pipeline is connected tothe bottom end of the partition plate. Two smashing rollers are symmetrically installed in the smashing chamber. Stationary cutters matched with the two smashing rollers are installed on the two sides of the inner wall of the smashing chamber correspondingly. An induced draft fan is fixed to one side in the machine cabinet through a support. According to the meat smashing machine, the induced draft fan and an air purification box are arranged, waste gas is purified, the situation that waste gas is exhausted and pollutes air is prevented, the working environment quality of workers is improved,the working efficiency of workers is ensured, a spraying pipe, a spraying nozzle and a water pump are arranged, the smashing machine can be cleared conveniently, meat scraps are prevented from adhering to the inner wall of the machine cabinet, the situation that bacteria breed in the smashing machine is avoided, and safety of meat food is ensured.

The invention discloses a novel rapid building block core filling device and belongs to the technical field of building block processing. The filling can be applied to other fields after being subjected to simple modification, for solving the problems that the conventional manual building block core filling efficiency is low, the operating environment is poor, the time and labor are consumed, theproduction cost is increased, and continuous and high-efficiency production is not facilitated. The novel rapid building block core filling device disclosed by the invention comprises a rack, a powerdevice, a transfer device, a rapid filling device, a cleaning device and a detection device, and is characterized in that a transport device on the rack drives a mold to move forwards by virtue of chain drive, and the rapid filling device, the high-pressure cleaning device and the detection device are arranged on the rack. The novel rapid building block core filling device disclosed by the invention is simple in structure, ingenious in design, low in cost and high in reliability, full-automatic, high-efficiency and high-quality filling is realized, and the core filling efficiency in the production process is increased. Meanwhile, the labor intensity of the staff is reduced, and the operating environment quality of the staff is improved.