53results about How to "Improve percussion" patented technology

It relates to a dual acting hammer modified from ordinary hammers. It comprises the hammer head and hammer handle, with the head contained with sealed and movable blocks. It features in the once time for time hammering with improved hammering effect, being more accurate, reduced or illuminated vibration resulted from counteraction, simple structure, same shape with the ordinary hammer after quick resetting of blocks. It can be used for hammering tools like hack, handle axe, axe, tennis racket, and golf pole and so on.

The present invention discloses a rotary switch (10) for coverring a lid (15) on a switch rack (11) containing permanent joint (22). Embedding contact piece (13) contacting to the permanent joint on a rotary operating knob (12), after accepting the contact piece and the rotary operating knob as well as a leaf spring (14) on the switch rack together in order, covering the lid (15) on the switch rack (11) and assembling the rotary switch. The rotary switch uses the switch rack, the contact piece, the rotary operating knob, the leaf spring and the lid as composing component. The rotary switch implements simplification of constitution thereof and miniaturization with low cost, also obtains measurable knocking sense and excellent operating sense.

The invention discloses a method and relevant production techniques to produce environmental protection type paper pulp with biologicall zyme. The invention is characterized in that, after pulp-prepration raw materials are cut into pieces or processed through rough cutting, paint zyme and lignin zyme is put into raw material soaking tank to degradate lignin. The purposes are to lower molecule quality lignin, increase resolving and fractionated capacity of lignin, fulfill separation of lignin cellulose from semi-cellulose. Meanwhile, adopt such methods aas mechanical twisting, grinding and pulp-beating, pulp grinding, screw pressing, fiber loosening, fine pulp regulation, fine screening and etc., so as to reach the following technical targets: Low production cost of paper pulp, high perfect pulp concentrate, no polluted drainage, simple technique and advanced method. Therefore, the invention can be widely utilized in paper pulp preparation technologies in paper-making industry.

The invention relates to a superfine glass fiber cotton felt for photocatalytic air purification and a preparation method thereof, and belongs to the technical field of functional composite materials.The superfine glass fiber cotton felt consists of the following components in percentage by mass: 83 to 92 weight percent of superfine glass fiber, 6 to 8 weight percent of photocatalytic nanoscale particles and 1 to 3 weight percent of bonding system. The invention also relates to a preparation method of the superfine glass fiber cotton felt for photocatalytic air purification. The preparation method comprises the following steps: uniformly atomizing and spraying turbid liquid containing photocatalytic nanoparticles and a bonding system on the surface of the superfine glass fiber prepared bya flame blowing method, and drying to obtain the superfine glass fiber cotton felt for photocatalytic air purification. Compared with a traditional glass fiber filter cotton felt, the superfine glassfiber cotton felt for photocatalytic air purification has the advantages that the function of eliminating bacteria and volatile organic compounds (TVOC) in air is added, the superfine glass fiber cotton felt is rapidly decomposed under visible light, the filtering efficiency is higher, the filtering resistance is lower, and the machining strength is better.

This invention relates to a method for making pulp with straws, which crushes wheat, rice and corn straws, adds with caustic soda solution, mixes them to generate a basic substance, then adds hydrogen peroxide in it and mixes them to generate acute resolving reaction to fully resolve and separate fibers and lignin in the crushed stalks then to be grinded, beat and cleaned to strip off the lignin and prepare straw pulp for making paper, in which, the weight percentage is: straws : caustic soda : hydrogen peroxide=1: 0.03-0.12: 0.04-0.13, the reaction temperature is controlled at 70-100deg.C and the result will be even better when some aids are added.

The invention discloses high-strength modified energy-saving biological enzyme paper pulp and a pulping process thereof. The paper pulp comprises 0.5-5 parts of an antibacterial agent, 1-3 parts of a toughening agent, 1-5 parts of a thickening agent, 40-60 parts of regenerated paper pulp, 10-20 parts of a packing, 1-5 parts of a defoaming agent, 2-8 parts of a stabilizing agent, 1-3 parts of a retention aid, 10-30 parts of fibers and 5-20 parts of biological enzyme. According to the paper pulp, a biological enzyme technique is adopted for beating the pulp, and the biological enzyme with the high pertinence is selected for performing synchronous pulp beating treatment on the pulp, so that not only is the energy consumption reduced and is the yield increased, but also the fibers can be modified, for example, when wood pulp beating enzyme is adopted to be matched with the beating of the wood pulp, the beating degree is improved, the fiber strength is ensured, and the power consumption in beating each ton of the pulp is reduced; when the biological enzyme is adopted for beating OCC pulp, the beating degree is reduced, the fiber strength is improved, the drainability, the pulp beating capability and the flowability of the fibers are improved, and meanwhile, the production energy consumption is reduced, the properties of the pulp are improved, and thus the quality of paper is improved.

The invention provides an identification and correction method for a tremor or tapping artifact in a dark-field image template of a detector. The method comprises: (1), dark-field image templates having different collection delays are collected and are used as standard image templates; (2), bad pixel searching is carried out on the standard image templates and bad pixels are replaced; (3), a clinical dark-field image template is collected; (4), bad pixel searching is carried out on the clinical dark-field image template and bad pixels are replaced; (5), offset correction is carried out on the clinical dark-field image template after bad pixel replacement; and (6), tremor or tapping artifact identification is carried out on the clinical dark-field image template after offset correction. According to the invention, identification and correction of a tremor or tapping artifact can be completed simply and rapidly; and tremor or tapping artifact can be corrected effectively in real time on the premise that the dark-field image quality of the normal dark-field image is hardly changed. Therefore, the anti-tremor or tapping performance of the flat panel detector is improved substantially; and the cost is lowered.

The invention relates to a clearing-up and recycling device, in particular to a road asphalt clearing-up and recycling device for construction. The road asphalt clearing-up and recycling device for construction aims at achieving the technical purpose of the high clearing-up and recycling efficiency. In order to achieve the above technical purpose, the provided road asphalt clearing-up and recycling device for construction comprises a trolley, a fixed rod, a sliding rail, a strut, a first spring, a shovel groove, a collection tank, a first bearing seat, a first rotary shaft, second springs, a driven wheel, a flat belt and the like. A guide hole is formed in the fixed rod. A rotary motor and a support are arranged on the right side of the fixed rod. The support is located below the rotary motor. A sliding sleeve is arranged at the top end of the right portion of the support. A roller is arranged on the right side of the rotary motor. By the adoption of the road asphalt clearing-up and recycling device for construction, the effect of the high clearing-up and recycling efficiency is achieved, the rotary motor of the device rotates forwards and reversely to drive the shovel groove to move leftwards and rightwards, road asphalt is shoveled and recycled, and the recycling speed is high.

The invention discloses a paper shredding device for a hydrapulper. The device comprises a cutter disc, wherein the external ring of the cutter disc is fixedly connected with three paper shredding cutters which are uniformly distributed along the circumferential direction; the inner and outer sides of the paper shredding cutters are arc; a sleeve cover is fixedly connected on the cutter disc; the central axes of the sleeve cover and the cutter disc are superposed; the external ring of the cutter disc is fixedly connected with three baffles which are uniformly distributed along the circumferential direction; parts, which are close to the sleeve cover, of the bottom end faces of the baffles are fixedly connected with the cutter disc, and the rest parts of the bottom end faces of the baffles are fixedly connected with the paper shredding cutters; and the heights of the ends, which are fixed with the sleeve cover, of the baffles are more than the heights of the other ends of the baffles. The paper shredding device for the hydrapulper has the advantages that under the condition of not changing the original power, the linear velocity is accelerated by 5-6m/second, and raw materials can be dragged towards the paper shredding cutters under a powerful vortex generated in the operation process and quickly shredded by the paper shredding cutters, so that the pulping velocity is accelerated, and the beating degree is improved.

The invention discloses a fiber oxidase composition for changing and improving the properties of fibers, a paper making method and application. The composition contains the following ingredients: a bio-enzyme ingredient and an auxiliary ingredient, wherein the bio-enzyme ingredient has an oxidation function on the fibers and is fiber oxidase which is used for changing the surface properties of the fibers through redox reaction; the auxiliary ingredient has the function of improving the catalytic activity of the fiber oxidase and is a fiber oxidase reaction product scavenger; the weight ratio of the bio-enzyme ingredient to the auxiliary ingredient is 1: (0.1-50). When the composition is used for treating paper pulp, not only is the strength property of paper remarkably enhanced, but also the draining property of the paper pulp is improved.

The invention relates to a forming method of a high-strength bridge concrete prefabricated part. A forming device of the high-strength bridge concrete prefabricated part is adopted, and the device comprises a mounting frame, support legs, vibration mechanisms, smoothing mechanisms, vibration sliding rods, telescopic rods, a vibration rack, horizontal rods, vertical rods, inclined rods and a building box. According to the forming device of high-strength bridge concrete prefabricated part disclosed by the invention, the following problems can be solved: in a forming process of the high-strength bridge concrete prefabricated part, the interior of a bridge beam steel structure is difficult to be fully filled with the high-strength concrete, so that the safety and the service life of the bridge concrete prefabricated part are reduced because of formation of a hollow cavity, multi-station synchronous smoothing and compaction operations on concrete residue stones bulged at the bottom and on the side walls of the bridge concrete prefabricated part are difficultly carried out, the labor intensity of surface precision processing for later-period workers is increased, and the operation efficiency of preparation of the high-strength bridge concrete prefabricated part is further reduced.

The present invention provides a structure of a movable contact that can have a good knock feeling even when it is used for a flat circuit board, and will not cause a badly restored movable contact after being turned over. The contact structure consists of a disk portion in which the center of the thin metal plate is bulged in one direction into a dome shape, and has a predetermined angle from the outer peripheral portion of the disk portion to the center portion of the disk portion. The side edge portion 1a is connected to the side edge portion 1a and the dome portion 1b which can be turned over repeatedly is connected, and the middle of the connection portion between the side edge portion 1a and the dome portion 1b is formed into a multi-step shape through a plurality of bending portions 1c and 1d.

The invention belongs to the technical field of papermaking and in particular relates to nanofiber carbon black conductive paper and a preparation method thereof. The nanofiber carbon black conductive paper is prepared from the following raw materials: bleached needle leaf pulp, bleached broad leaf pulp, mineral fillers, nanofiber additives, carbon black, a dispersing agent, a wet strength agent and a dry strength agent. The nanofiber carbon black conductive paper disclosed by the invention can meet use of the traditional conductive paper and can also serve as battery electrode coating paper, so that the application range of the conductive paper is widened. The product has the advantages of high uniformity, high covering property, high mechanical strength, excellent conductive performance and high chemical stability.

The invention discloses a centrifugal gas multi-stage filtering device which comprises a shell, a driving mechanism, a gas inlet, a horn mouth exhaust pipe and a dust collector, the driving mechanism is arranged in the center of the top of the shell, and the gas inlet is formed in the position, close to the driving mechanism, of the top of the shell; the horn mouth exhaust pipe is arranged at the bottom of the inner wall of the shell and extends to the outside of the shell, the dust collector is arranged at the bottom of the shell, the stirring device is arranged in the center of the interior of the shell and is close to the top, the multi-stage filtering device is arranged in the shell, and the multi-stage filtering device is connected with the stirring device in a matched mode. The invention relates to the technical field of gas filtering equipment. According to the centrifugal gas multi-stage filtering device, the anti-blocking effect is achieved, dust in gas is rapidly filtered through centrifugal force in combination with multi-stage filtering, meanwhile, dust accumulation is effectively prevented, blocking is not prone to occurring, the filtering effect is good, and the use performance is improved.

The invention discloses a flue gas filtering device for a boiler, and relates to the technical field of boiler flue gas treatment. The flue gas filtering device for the boiler comprises a device main body, a filtering channel is formed between the top and the bottom of the device main body in a penetrating mode, and a gas inlet connecting pipe communicated with the filtering channel is fixed to the bottom of the device main body. According to the flue gas filtering device for the boiler, an inclined driving plate enables a rotating sleeve to rotate at a certain speed under the action of rising high-speed flue gas in the filtering channel, and the rotation enables fan-shaped filter screens to rotate in the filtering channel, so that the rotating filtering effect of the fan-shaped filter screens is achieved; and even if dust particles in the flue gas are not uniformly distributed, the dust particles filtered by the whole fan-shaped filter screen group are also distributed in a uniform state, so that the whole fan-shaped filter screen group is comprehensively utilized, and the reduction of the filter efficiency and the increase of the cleaning frequency caused by non-uniform distribution of the dust particles on the whole fan-shaped filter screen group are prevented.

The protection equipment comprises a box body, separation nets and cover plates, the separation nets are fixed to the two corresponding sides of the bottom of the surface of the box body, the cover plates are fixed to the two corresponding sides of the top of the surface of the box body, and the positions of the cover plates correspond to the positions of the separation nets. A dustproof filter screen, a wind driven generator and an integrated treatment device are arranged in the box body, the dustproof filter screen is fixed to the inner wall of the box body and located at the position of the cover plate, the wind driven generator is fixed to the bottom of the inner wall of the box body and located in the center, and the integrated treatment device is arranged in the box body and located at the position of the partition net; the invention relates to the technical field of wind power generation equipment. According to the protection equipment for wind power generation, the purposes of dust prevention and heat dissipation are achieved, heat can be dissipated in time, dust entering is reduced, dust accumulation is effectively prevented, meanwhile, the self-cleaning effect is achieved, the blocking situation is not prone to occurring, and the working efficiency and the use performance are improved.