48results about How to "Improve dust blocking effect" patented technology

Disclosed is a nasal cavity cleaning liquid for preventing dust-in, which is prepared from the following raw materials (by weight percent): sea salt 3.0-5.0%, glycerol 0.5-1.5%, albumen candy 0.05-0.2%, water-soluble pearl powder 0.05-0.2%, lemon acid 0.05-0.2%, lemon peppermint perfume compound 0.01-0.05%, menthol 0.005-0.01%, EDTA-2Na 0.01-0.04% and balancing water.

The invention adopts hollow polyester fiber, polyester short fiber and ES fiber according to mixture ratio of 1-4:1-4:2-8, including the steps of loosening-> quantitative feeding-> hot melting->cold roll forming->hot rolling->air cooling->trim cutting. The fiber of the invention is conglutinated after hot melting treatment; therefore, fiber pad has good toughness and uniform density and stable structure; the produced filtering material has large pore space, good loading capacity which is difficult to be deformed with small resistance and large dust holding performance and good filtering effect.

The invention relates to a disc type sludge drying system based on cascade utilization of energy. The system comprises a disc type drying system and a filter-press drying system, wherein the disc type drying system comprises a casing, a stirring shaft is mounted in the casing, discs are mounted on the stirring shaft in a spaced manner, a sludge inlet and a steam outlet are formed in the top of the casing, a dry sludge outlet is formed in the bottom of the casing, the stirring shaft is driven by a stirring motor at one end, the stirring shaft adopts a hollow structure, one end of the stirring shaft is a hot steam inlet, and a condensed water outlet pipe is inserted into the end; the filter-press drying system comprises a filter-press system, a sludge feeding system connected with the filter-press system, a vacuumization system, a hot water circulating system and a sludge output system, the sludge feeding system is connected with a sludge feeding end of the filter-press system, the sludge output system is connected with is connected with a sludge discharging end of the filter-press system, the vacuumization system is used for keeping the filter-press system in a negative pressure state during filter pressing of sludge, and the hot water circulating system is connected with the steam outlet of the disc type drying system.

The invention relates to the technical field of mask processing and provides a nonwoven fabric antibacterial mask and a preparation method thereof. The nonwoven fabric antibacterial mask is mainly made of an antibacterial nonwoven fabric. An antibacterial nonwoven fabric layer is prepared from 10-12 parts of merremia boisiana fibers, 10-12 parts of bamboo fibers, 20-22 parts of polypropylene, 4-6parts of chitosan, 2-4 parts of silver nitrate solution, 1-3 parts of sodium alginate, 1-3 parts of flos lonicerae, 1-2 parts of tamarindus, 1-4 parts of cacti, 3-5 parts of herba origani and 0.2-0.4part of a dispersing agent. The preparation method includes steps of plant extract liquid preparation, antibacterial agent preparation, antibacterial fiber preparation, antibacterial nonwoven fabric manufacturing and the like. Defects in the prior art are overcome, various fiber components are adopted for knitting the nonwoven fabric, antibacterial ions and various natural effective antibacterialcomponents are added, and accordingly bacteria breeding in a utilization process is prevented while external floating dust particles are effectively filtered, and utilization effects of the mask are improved.

The invention relates to a portable central processing unit (CPU) controlled high-power electric welding machine. The electric welding machine comprises a CPU control circuit board, a radiator, an air fan and a shielding layer which are arranged in a shell; and a high-frequency resonant soft switch circuit which consists of four insulated gate bipolar transistor (IGBT) power transistors Q1, Q2, Q3 and Q4, two resonant inductors L1 and L2, a high-frequency transformer T1, two fast recovery diodes D1 and D2, an input filter capacitor C1, a resonant capacitor C2, an output filter capacitor C3 and a ferrite reactor L3 is also arranged in the shell. The CPU control circuit is adopted to realize digital button operation, a pulse width modulation (PWM) wave form is output by CPU given control current to control a driving transformer, the on / off of the IGBT power transistors is regulated to control the high-frequency transformer to do work, rectification is performed by the fast recovery diodes, the resonant inductors and the resonant capacitors play a role in realizing resonant frequency and feeding back energy, and the resonant frequency and the energy are finally output by the ferrite reactor. The CPU centralized control is realized; moreover, the high-power electric welding machine has low fault rate, high insulativity, a good dust blocking effect and long service life, is convenient to operate, saves energy, reduces consumption, prevents interference, and is low in production cost and use cost.

The invention discloses an automobile exhaust filtering respirator for traffic police. The automobile exhaust filtering respirator comprises an inner layer, a middle layer and an outer layer, wherein the outer layer is a bowl-like carbon dust filtering layer; the middle layer is a tile toxic gas filtering layer; a paster fit with the wing of nose is stitched in the middle; the inner layer is a reticulated gauze layer; and mixed particles consisting of active carbon, manganese dioxide and copper oxide are added in the toxic gas filtering layer. The automobile exhaust filtering respirator has the characteristics of safety, comfort, convenience, attractiveness and good filtering effect, and is suitable for traffic police and related personnel facing automobile exhaust for a long time.

The invention discloses a producing method of a natural mineral absorbing and filtering oronasal respirator. The point of the technic proposal is that the producing method of the natural mineral absorbing and filtering oronasal respirator is that: choosing natural mineral absorbing and filtering agent as the raw material of the natural mineral absorbing and filtering oronasal respirator; moistening the agent and pressing into an oronasal respirator roughcast with an arc plate-shaped solid formation; then airing, baking and drilling the oronasal respirator and finally packing the oronasal respirator to a finished product. With good dust resisting effect, the natural mineral absorbing and filtering oronasal respirator can effectively absorb the soot smaller than 5 micron, the toxic gas and the harmful bug, which prevents the soot, the toxic gas and the harmful bug from being directly absorbed into the alveolus so as to guarantee the body health of the user. The natural mineral absorbing and filtering oronasal respirator is characterized by small respiration resistance, light weight and peculiar smell absorption, which can be used repeatedly after being disinfected and dried. The invention is suitable for producing the semi-ellipse bowl-shaped absorbing and filtering oronasal respirator.

The invention discloses a continuous vertical transportation device for construction waste, and relates to the technical field of construction waste transportation. The continuous vertical transportation device comprises a machine shell, a construction waste adding machine, a water storage tank, a driving motor, a first driving tooth roller, a second driving tooth roller and a first connecting spring; the water storage tank is fixedly installed on the outer wall of one side of the machine shell; the construction waste adding machine is fixedly mounted at the top of the water storage tank; andan electric push rod is fixedly mounted on one side of the construction waste adding machine and located at the top of the water storage tank through a shock pad. According to the continuous verticaltransportation device for the construction waste provided by the invention, a transmission chain plate is installed in the device, the foldable conveying plate is installed on the outer side of the transmission chain plate; the transmission chain plate conducts longitudinal transmission in the device, longitudinal transportation of the construction waste is achieved, meanwhile, a cleaning brush isinstalled in the device, the conveying plate can be cleaned in the waste conveying process, and the situation that stubborn stains are generated due to combination of various garbage stains and are difficult to remove is avoided, and the using effect of the device is improved.

The present invention discloses a manufacturing method of filtration and adsorption muzzle. The manufacturing method of the present invention is as following. The left and right surfaces of natural mineral adsorption and filtration muzzle respectively adopt absorbent gauze and sterilization medical gauze, which are tailored into the filtration and adsorption muzzle according to the shapes of the left and right surfaces of the natural mineral adsorption and filtration muzzle. The front face of the filtration and adsorption muzzle is provided with four through holes, and the last step is to package and make the finished production. The filtration and adsorption muzzle has a good dust prevention effect, can adsorb and filter respirable dust and harmful germ which are less than five micrometer, can avoid the dust and the harmful germ to be sucked into pulmonary alveolus directly, and guarantee the healthy of the user. The present invention has the features of that respiratory resistance is small, weight is light, the muzzle can absorb peculiar smell, can unpick and wash and is anti abrasive. The muzzle can be used for a plurality of times after washing, sterilization and drying. The present invention is suitable to manufacture semiellipse bowl-shaped filtration and adsorption muzzle.

The invention relates to the technical field of electrical equipment, and discloses an electric meter box with a protection function, the electric meter box comprises an electric meter box body and main heat dissipation holes formed in the side wall of the electric meter box body, a rotating shaft is rotatably inserted in the side wall of the electric meter box body, one end of the rotating shaft is provided with a windmill, and the other end of the rotating shaft is provided with a gear; the outer side of the main baffle plate is provided with teeth engaged with the gear, the bottom of the electric meter box body is provided with standby heat dissipation holes, the bottom of the electric meter box body is slidably provided with a standby baffle plate, and a linkage assembly is arranged between the main baffle plate and the standby baffle plate. In strong wind weather, a windmill is rotated by strong airflow, so that the windmill drives a gear to rotate, a main baffle is driven to move upwards to seal main heat dissipation holes through meshing of the gear and teeth, meanwhile, a linkage assembly drives a standby baffle to move, sealing of standby heat dissipation holes is relieved, and heat in the electric meter box body is dissipated through the standby heat dissipation holes. Therefore, the device can be conveniently used outdoors in windy weather.

The invention discloses a production method of an absorbing and filtering oral-nasal mask. The key points of the technical proposal lie in the production method of the absorbing and filtering oral-nasal mask. The production method is that: absorbent gauzes and sterilizing medical gauzes are respectively used at the left face and the right face of a natural mineral absorbing and filtering oral-nasal mask. The absorbing and filtering oral-nasal mask is made according to different shapes at the two faces of the natural mineral absorbing and filtering oral-nasal mask. The frontage of the absorbing and filtering oral-nasal mask is provided with four through holes and package is the finished product of the absorbing and filtering oral-nasal mask. The absorbing and filtering oral-nasal mask has good dustproof effect, which can absorb and filter respiratory dust and detrimental pathogenic bacteria of less than 5 microns, thus preventing dust and detrimental pathogenic bacteria from being directly sucked into pulmonary alveolus and guaranteeing body health of users. The invention is characterized by small breath resistance, light weight and being capable of absorbing peculiar smell and being reused for a plurality of times after sterilization and evaporation, which is applicable for producing three-dimensional absorbing and filtering oral-nasal masks with a shape like an arched plate.

The present invention discloses a manufacturing method of filtration and adsorption muzzle. The manufacturing method of the present invention is as following. The left and right surfaces of natural mineral adsorption and filtration muzzle respectively adopt absorbent gauze and sterilization medical gauze, which are tailored into the filtration and adsorption muzzle according to the shapes of the left and right surfaces of the natural mineral adsorption and filtration muzzle. The front face of the filtration and adsorption muzzle is provided with four through holes, and the last step is to package and make the finished production. The filtration and adsorption muzzle has a good dust prevention effect, can adsorb and filter respirable dust and harmful germ which are less than five micrometer, can avoid the dust and the harmful germ to be sucked into pulmonary alveolus directly, and guarantee the healthy of the user. The present invention has the features of that respiratory resistance is small, weight is light, the muzzle can absorb peculiar smell, can unpick and wash and is anti abrasive. The muzzle can be used for a plurality of times after washing, sterilization and drying. The present invention is suitable to manufacture semiellipse bowl-shaped filtration and adsorption muzzle.

The invention discloses an industrial waste gas purifier which comprises a dust removal chamber and a UV photolysis chamber, a dustproof assembly is mounted in the dust removal chamber; the dustproofassembly comprises a fixed seat and a plurality of dust baffles which are arranged in parallel and are parallel to one another; the fixing base comprises a base plate and a plurality of fixing piecesfixed to the two sides of the base plate. Each fixing piece is connected with the top wall of the dust removal chamber; the base plate is horizontally mounted on the lower surface of the top wall of the inner cavity of the dust removal chamber through the plurality of fixing pieces; the length direction of the seat plate is consistent with the waste gas trend of the dust removal chamber; wherein the plurality of dust baffles are movably connected to the lower surface of the base plate, the plurality of dust baffles are divided into a plurality of left dust baffles and a plurality of right dustbaffles, the seat plate is provided with a rotation control assembly used for enabling all the dust baffles to simultaneously rotate, and the seat plate is also provided with an adjustment control assembly used for simultaneously adjusting the distance between the adjacent dust baffles. The purifier can stably prevent dust and adjust the purification of the flow of malodorous gas entering the photolysis chamber.

The invention relates to the field of dust removal in coal mines, in particular to a method and device for automatically isolating dust sources and generating sprays for dust control and suppression.The device comprises lifting cylinders and a dust blocking curtain, wherein a nozzle mounting frame is mounted on the top of the lifting cylinders; and the nozzle mounting frame is provided with a plurality of nozzles. In the device for automatically isolating the dust sources and generating the sprays for dust control and suppression, the position of the dust blocking curtain is changeable in theup and down direction rather than fixed or unchangeable. When the device is in use, the lifting cylinders are used for lifting the dust blocking curtain, and the lifting cylinders do not rise when acoal cutting machine moves, so that the view of a driver is not blocked. During coal cutting, the dust blocking curtain rises, and the height of the dust blocking curtain plus the height of a chute isolation belt can effectively prevent dust from overflowing. In addition, the sprays from the nozzles are used for dust suppression treatment, and the dust can quickly fall into a chute.

The invention belongs to the technical field of drilling equipment and particularly discloses drilling equipment for industrial machinery production. Aiming to the problems of simple structure, relatively poor dust collection effect in the drilling process and easiness in environmental pollution caused by splashing of debris of existing drilling equipment, the following technical scheme is provided: the drilling equipment for industrial machinery production comprises a base; an L-shaped plate is fixed to one side of the outer wall of the top of the base through a screw; an electric telescopicrod is fixed to the outer wall of the bottom of the L-shaped plate through a screw; a fixed block is fixed at one end of a piston rod of the electric telescopic rod through a screw; a fixed groove isformed in the outer wall of the bottom of the fixed block; a motor is fixed to the inner wall of the fixed groove through a screw; and a drill bit is connected to an output shaft of the motor througha coupling. For the drilling equipment disclosed by the invention, by arranging the motor, the electric push rod and a dust suction pump, the piston rod of the electric push rod can be controlled to shrink, a dust blocking cover is guaranteed to be always in a state of being attached to a steel plate, a good dust blocking effect is exerted, and pollution of the debris to the surrounding environment is avoided.

The invention discloses an intelligent heat dissipation dust cover for transformers and a working method thereof. Heat dissipation holes are arranged in the side wall of a cover body, and a T-shaped air guide tube is arranged inside the cover body. A vertical tube of the T-shaped air guide tube is communicated with the heat dissipation holes. Cooling fans are arranged on both ends of the horizontal tube of the T-shaped air guide tube. A baffle is arranged at the center of the horizontal tube of the T-shaped air guide tube. The top of the baffle is connected with the horizontal tube of the T-shaped air guide tube through a rotating shaft. At least two dust blocking plates are arranged on the inner wall of the vertical tube of the T-shaped air guide tube. A small motor is arranged on the outer wall of the T-shaped air guide tube. The main shaft of the small motor passes through the side wall of the T-shaped guide tube and is connected with the dust blocking plates. A temperature sensor and a controller are arranged in the cover body. The controller is electrically connected with the temperature sensor, the cooling fans and the small motor. The intelligent heat dissipation dust coverfor the transformers has reasonable structure arrangement, high automatic and intelligent degree, good water resistance, good use stability, and strong applicability and practicality.

The utility model discloses earthwork tamping equipment for ecological restoration, and relates to the technical field of tamping machines, the earthwork tamping equipment for ecological restoration comprises a fixing frame, a shell, a hydraulic cylinder and a tamping hammer, and further comprises a dust blocking device, and the dust blocking device comprises three dust blocking plates; one side of the fixing frame is provided with a connecting part, the dust blocking plates are rotationally connected with the end, close to the tamping hammer, of the fixing frame, and the three dust blocking plates are located on the three sides, except the position where the connecting part is located, of the fixing frame correspondingly; when the dust blocking plate rotates to the limiting position in the direction close to the fixing frame, the dust blocking plate can shield the receding openings in the fixing frame. When the dust blocking plate rotates to the limiting position in the direction away from the fixing frame, the dust blocking plate can form blocking protection on the side, close to the fixing frame, of the tamping hammer. According to the tamping equipment, the probability that impurities enter the shell to influence normal use of the tamping equipment can be effectively reduced, so that the tamping efficiency and effect of the tamping equipment can be effectively guaranteed.

The invention discloses a producing method of a natural mineral absorbing and filtering respirator. The point of the technic proposal is that the producing method of the natural mineral absorbing and filtering respirator is that: choosing natural mineral absorbing and filtering agent as the raw material of the natural mineral absorbing and filtering respirator; moistening the agent and pressing into a semi-ellipse bowl-shaped respirator; then airing, baking and drilling the respirator and finally packing the respirator to a finished product. With good effect, the natural mineral absorbing and filtering respirator can effectively absorb the soot smaller than 5 micron, the toxic gas and the harmful bug, which prevents the soot, the toxic gas and the harmful bug from being directly absorbed into the alveolus so as to guarantee the body health of the user. The natural mineral absorbing and filtering respirator is characterized in small respiration resistance, light weight and peculiar smell absorption, which can be used repeatedly after being disinfected and dried. The invention is suitable for producing the semi-ellipse bowl-shaped absorbing and filtering respirator.

The utility model belongs to the technical field of power distribution cabinets, and particularly discloses a plc power distribution cabinet, which comprises a cabinet body, the inner side wall of the cabinet body is provided with a component mounting piece, the side edge of the cabinet body is provided with a plurality of groups of air inlets, the air inlets are internally provided with dust blocking assemblies, and each dust blocking assembly comprises a plurality of dust blocking plates and a first dust screen; an air outlet is formed in the back surface of the cabinet body; a fan is arranged in the air outlet; a plurality of mounting grooves are formed in the component mounting part, a plurality of baffles matched with the mounting grooves are connected to the component mounting part in a sliding mode, heat dissipation air inlets are formed in the side edges of the mounting grooves, air outlets are formed in the upper portions of the mounting grooves, and air outlet pipes are connected between the air outlets and the air outlets; different elements in the PLC control cabinet can be mounted in different mounting grooves and are used in different areas, and subsequent maintenance is also facilitated; after entering the cabinet body through the air inlet, air enters the mounting groove through the heat dissipation air inlet to take away heat of components and parts, enters the air outlet pipe through the air outlet and is discharged through the air outlet.

The invention relates to a disk type anti-explosion and safe drying machine which comprises a shell. A stirring shaft is arranged in the shell, disk pieces are arranged on the stirring shaft at intervals, a sludge inlet and a steam outlet are formed in the top of the shell, a dry sludge outlet is formed in the bottom of the shell, the stirring shaft is driven by a motor which is arranged at one end of the stirring shaft, the stirring shaft is of a hollow structure, and one end of the stirring shaft serves as a hot steam inlet and is provided with a condensation water draining pipe in an inserted mode; the shell comprises a semicircular cylinder and a dome, the stirring shaft is arranged on the semicircular cylinder, the semicircular cylinder is coaxial with the stirring shaft, and the upper side of the semicircular cylinder extends upwards to form the dome; a section structure of the shell is that the distance between the top end of the dome and the center of the semicircular cylinder is 1 to 2 times of the radius of the semicircular cylinder; a plurality of upper partition plates and lower partition plates are arranged at the top of the dome at intervals along the axial direction of the stirring shaft, and dust guide gaps are formed between the upper ends of the lower partition plates and the inner top surface of the dome.

The invention belongs to the technical field of network monitoring, in particular to a protection device for for a network monitoring management server. The device resolves the problem in the prior art that a protection shell for a conventional network monitoring management server is relatively simple in structure; and the protection measures for the server are not enough. The invention providesa technical scheme characterized in that supporting legs are welded to the four corners of the outer wall of the bottom of the shell; water-cooling curved pipes are arranged at the upper end and the lower end of the interior of the shell correspondingly, a refrigeration box is fixed to the outer wall of one side of the shell through bolts, mounting grooves are formed in the two sides of one end ofthe refrigeration box correspondingly, parallel arc-shaped ends are welded to the inner walls of the mounting grooves correspondingly, and a groove is formed in the end, close to the bottom end, of the refrigeration box. Through cooperation of a heat exchange plate and a curved groove, the heat exchange area can be effectively increased, and the refrigerating and cooling effect on water cooling liquid are improved; and through an arranged drainage channel, the contact area of the heat exchange plate and water cooling liquid can be further increased, and then the water cooling effect is further improved.

The wood cutting machine with the dust blocking structure comprises a bench saw body and a discharging plate, the discharging plate is fixedly installed on the top face of the bench saw body, a top bin is fixedly installed on the top face of the discharging plate, the top faces of the two ends of the top bin are connected with a moving box in a penetrating and sliding mode, and a high-pressure air blower is fixedly installed on the top face of the top bin. An electric cylinder is vertically and fixedly installed on the top face of the top bin and located on one side of the high-pressure air blower, and an air outlet groove is formed in the bottom face of the moving box. The device has the advantages that the moving box and the high-pressure air blower are adopted, the moving box vertically penetrates through the two ends of the top bin, when a template is cut, the high-pressure air blower is started, high-speed airflow is generated and enters the moving box through the air conveying pipe along the flow dividing pipe, then the airflow is sprayed out at a high speed along the air outlet groove, a vertical high-speed air curtain is formed, and the high-speed air curtain does not affect entering and exiting of wood; and dust can be prevented from escaping through high-speed airflow, the use convenience is improved while the good dust blocking effect is achieved, and then the working efficiency is improved.

The utility model belongs to the technical field of oral medical treatment, and particularly relates to an oral treatment bed which comprises a bed body, an alarm device and an adjusting module, the adjusting module comprises a sliding block, a sliding groove and a positioning piece, the sliding groove extends in the length direction of the bed body, the sliding block is arranged in the sliding groove in a sliding mode, the alarm device is arranged on the sliding block, and the positioning piece is arranged on the sliding block. The positioning piece is arranged between the sliding block and the bed body and used for positioning the position of the sliding block on the sliding groove. According to the scheme, the alarm device has the effect that patients of different ages, heights and height proportions can operate the alarm device conveniently.

The invention relates to a sludge drying system based on gradient utilization of energy. The sludge drying system comprises a disc drying system and a pressing filtration drying system, wherein the disc drying system comprises a shell, a stirring shaft is installed in the shell, disc sheets are separately installed on the stirring shaft, the top of the shell is provided with a sludge inlet and a vapor outlet, the bottom is provided with a dried sludge outlet, the stirring shaft is driven by a motor at one end, the stirring shaft is of a hollow structure, one end of the stirring shaft is a heat vapor inlet, and a condensated water export tube is inserted on the end. The pressing filtration drying system comprises a pressing filtration system, a sludge feed system connected with the pressing filtration system, a vacuumizing system, a heat water circulating system, and a sludge output system, wherein the sludge feed system is connected with a sludge feed end of the pressing filtration system, the sludge output system is connected with a sludge discharge end of the pressing filtration system, the vacuumizing system is used for keeping the pressing filtration system to be at a negative pressure state when the pressing filtration system presses and filters the sludge, and the heat water circulating system is connected with the vapor outlet of the disc drying system.

The invention discloses a producing method of a natural mineral absorbing and filtering respirator. The point of the technic proposal is that the producing method of the natural mineral absorbing and filtering respirator is that: choosing natural mineral absorbing and filtering agent as the raw material of the natural mineral absorbing and filtering respirator; moistening the agent and pressing into a semi-ellipse bowl-shaped respirator; then airing, baking and drilling the respirator and finally packing the respirator to a finished product. With good effect, the natural mineral absorbing andfiltering respirator can effectively absorb the soot smaller than 5 micron, the toxic gas and the harmful bug, which prevents the soot, the toxic gas and the harmful bug from being directly absorbed into the alveolus so as to guarantee the body health of the user. The natural mineral absorbing and filtering respirator is characterized in small respiration resistance, light weight and peculiar smell absorption, which can be used repeatedly after being disinfected and dried. The invention is suitable for producing the semi-ellipse bowl-shaped absorbing and filtering respirator.

The invention belongs to the technical field of traditional Chinese medicine, particularly relates to a traditional Chinese medicine meridian and collateral dynamic photoelectric demonstrator, and aims at the problem that most of various existing meridian and collateral displaying products display plane static images and cannot show the dynamic trends of the meridians and collaterals, In order tosolve the practical problems, the invention provides a photoelectric dynamic demonstration scheme. The traditional Chinese medicine meridian and collateral dynamic photoelectric demonstrator comprisesan organic glass plate and an operation control cabinet, wherein a human body meridian and collateral model pattern is sprayed and coated at one side of an organic glass plate; a plurality of lamp holes are formed in the outer wall of one side; a lamp strip is inserted and connected to the inner walls of lamp holes; fixing holes are formed in positions of four corners of one side of the organicglass plate; fixing screw bolts are inserted and connected to the inner walls of the fixing holes; the organic glass plate is connected with an installing frame through the fixing screw bolts; the lamp strip is fixed according to a meridian and collateral path; and the luminous color and sequence and the luminous time of LED lamps are controlled by the control cabinet. By using the traditional Chinese medicine meridian and collateral dynamic photoelectric demonstrator, people can more intuitively see the meridian and collateral trends, so that ordinary people can also clearly see each meridianand collateral; the spreading and study of traditional Chinese medicine culture are convenient; the diagnosis effect of the traditional Chinese medicine is improved; and the application range is wide.

The invention adopts hollow polyester fiber, polyester short fiber and ES fiber according to mixture ratio of 1-4:1-4:2-8, including the steps of loosening-> quantitative feeding-> hot melting->cold roll forming->hot rolling->air cooling->trim cutting. The fiber of the invention is conglutinated after hot melting treatment; therefore, fiber pad has good toughness and uniform density and stable structure; the produced filtering material has large pore space, good loading capacity which is difficult to be deformed with small resistance and large dust holding performance and good filtering effect.

The invention discloses a flexible inner wall floating grinding table, which relates to the technical field of machining, and solves the problems that the labor intensity of workers is high, the cleaning speed is low, meanwhile, dust needs to be adsorbed through a dust suction table in the cleaning process, the adsorption effect is poor, dust diffusion is caused, and the environment is polluted. Theflexible inner wall floating grinding table comprises agrinding table support, a machining assembly and a residue collecting assembly, wherein the machining assembly is composed of a cutter lifting mechanism, a front-back sliding transposition mechanism, a cutter feeding mechanism, a cutter position adjusting mechanism, a floating machining mechanism and a dust adsorption assembly; and the residue collecting assembly is located on the lower portion of the workpiece fixing assembly and between the two groups of machining assemblies. Dust diffusion is effectively avoided, environmental pollution is reduced, residues are collected and treated in a centralized mode, floating type automatic machining of the inner wall of a workpiece is achieved, any type of residues can be well polished, labor force is liberated, the working efficiency is improved, the machining quality is improved, and meanwhile the occupied space is small.

The invention discloses a producing method of a natural mineral absorbing and filtering oronasal respirator. The point of the technic proposal is that the producing method of the natural mineral absorbing and filtering oronasal respirator is that: choosing natural mineral absorbing and filtering agent as the raw material of the natural mineral absorbing and filtering oronasal respirator; moistening the agent and pressing into an oronasal respirator roughcast with an arc plate-shaped solid formation; then airing, baking and drilling the oronasal respirator and finally packing the oronasal respirator to a finished product. With good dust resisting effect, the natural mineral absorbing and filtering oronasal respirator can effectively absorb the soot smaller than 5 micron, the toxic gas and the harmful bug, which prevents the soot, the toxic gas and the harmful bug from being directly absorbed into the alveolus so as to guarantee the body health of the user. The natural mineral absorbingand filtering oronasal respirator is characterized by small respiration resistance, light weight and peculiar smell absorption, which can be used repeatedly after being disinfected and dried. The invention is suitable for producing the semi-ellipse bowl-shaped absorbing and filtering oronasal respirator.

The invention provides a dust collection sound insulation screen, and relates to the technical field of building construction fence structures. The dust collection and sound insulation screen comprises a dust insulation baffle; a dust suction assembly comprises a dust suction pipe arranged on one side of the dust isolation baffle, and a dust removal fan matched with the dust suction pipe to suck air and dust is arranged at the opening end of the dust suction pipe; an air purification assembly comprises an air purification box, an air inlet and an air outlet are formed in the air purification box, the air inlet communicates with the air outlet of the dust removal fan, an air filtering structure is arranged in an inner cavity of the air purification box, the air inlet end of the air filtering structure faces the air inlet, and the air outlet end of the air filtering structure faces the air outlet. The dust isolation effect around the building construction site can be improved.