173results about How to "Increase contact frequency" patented technology

A heat exchanger having excellent heat exchanging performance is obtainable by a simple production technique and at a low cost. This is achieved by providing a fin member and by increasing heat conductivity between the fin member and a meandering pipe body. Further, the heat exchanger is made compact for high degrees of layout freedom, enabling the heat exchanger to be installed in a tight space. Engagement grooves are provided in both end surfaces, which are opposite to each other, of a fin member in which fins are parallel arranged. Straight pipe sections are parallelly arranged, with gaps in between, in the engagement grooves of the fin member. The straight pipe sections a are connected at bent sections. A pair of meandering sections is arranged opposite to each other with an insertion gap of the fin member in between. On of the meandering sections and the other meandering section are connected by a connection pipe to form a meandering pipe main body. The straight pipe sections of the one meandering section are arranged in the engagement grooves in the one end surface of the fin member inserted and arranged in the insertion gap between the one meandering section and the other meandering section of the meandering pipe body, and the straight pipe sections of the other meandering section are arranged and fixed in the engagement grooves in the other end surface.

A method of removing photoresist film with high efficiency of removal and friendliness with the environment while reducing the material consumption and the cost for the ventilation facility, and an apparatus used for the method are provided. Particularly the present invention provides a method of removing a photoresist film provided on a surface of a substrate, comprising steps of in a sealed system, disposing the substrate surface having the photoresist film to contact with a photoresist film removing solution, making ozone exist in gas phase and/or solution phase in the vicinity of the liquid surface of the photoresist film removing solution, and changing a relative position between the surface of the substrate and the liquid surface of the solution to decompose or remove the photoresist film from the substarate, characterized in that the relative position is changed continuously or intermittently within a range between a position where a bottom edge of the substrate is present above the liquid surface of the solution, and another position where a top edge of the substrate is present below the liquid surface of the solution. The present invention also provides an apparatus used for the method.

The invention discloses a nano-aluminum slurry. The nano-aluminum slurry is composed of the following components in parts by weight: 1-20 nano-aluminum powder, 0.05-3 dispersant, and 80-100 solvent; wherein the dispersant is selected from From polycarboxylates, polycarboxylates, polyethylene glycols, polysilanes, polyacrylic acid, silane coupling agents, titanates, aluminate coupling agents; wherein the solvent is selected from alcohols, Ketones, esters, aromatic hydrocarbons, cycloaliphatic hydrocarbons or water. The preparation method of the slurry comprises the following steps: (1) adding the dispersant into the solvent according to the proportion and stirring evenly; (2) putting the nano-aluminum powder into the above-mentioned mixed liquid, stirring it with a ladle to soak it Wet and preliminary dispersion; (3) Disperse by ball milling with a planetary ball mill for 0.3-1 hour to obtain a finished product. The method is to use a suitable dispersant to treat the nano-aluminum powder, coupled with the shearing and emulsification of the ball mill, the nano-aluminum powder can be highly dispersed in the medium to form a uniform and stable slurry, which can be widely used in explosives, fuels, Coatings, activated sintering additives, electronic device coatings and other fields.

The invention discloses a planetary pavement garbage cleaning device. The planetary pavement garbage cleaning device comprises a machine frame, a power device, a transmission device, rolling brush devices and a garbage collection device. The power device and the transmission device are mounted on the machine frame, and the power device drives the transmission device to work, thereby driving spiralbrushes of a plurality of rolling brush devices to revolve and rotate; and pavement garbage is efficiently swept to the center. The garbage collection device collects the garbage concentrated on thecenter into a trash can through a suction pipe, a coarse filter screen and a centrifugal separator by negative pressure. The planetary pavement garbage cleaning device is suitable for the cleaning ofrelatively large pavement garbage in common cities or districts and townships, and has the characteristics of high cleaning efficiency and good effect on the relatively large pavement garbage.

The invention provides a sludge drying system, which comprises a conveying apparatus, a tempering apparatus, a dehydration apparatus and a drying apparatus. The drying apparatus comprises a housing, the housing comprises a separation wall used for dividing the housing into a first drying chamber and a second drying chamber, and a communication port is formed on the separation wall and used for communicating the first drying chamber with the second drying chamber. A feed inlet and an air outlet are arranged on the upper part of the first drying chamber, and a discharge hatch is arranged on the circumferential wall of the first drying chamber. An air inlet is arranged on the circumferential wall of the second drying chamber. A stirring apparatus is arranged in the first drying chamber, wherein, the stirring apparatus comprises a rotation shaft and a stirring component fixed on the rotation shaft, and the stirring component is used for scraping the sludge near the communication port. An air blast apparatus is capable of communicating with the second drying chamber when passes through the air inlet. The invention also provides a sludge drying method by using the sludge drying system.

The invention discloses an experimental device and method for treating antibiotic wastewater through an iron-carbon micro-electrolysis method. An iron-carbon micro-electrolysis device comprises a top cover, a stuffing region, a multihole plate supporting layer, a heating stick, a temperature controller and an aeration pipe. The invention further discloses a method for treating the antibiotic wastewater by using the device. The method comprises the following steps: injecting the antibiotic wastewater into an adjustment pool, adjusting pH to be 2.0 to 4.0, then injecting the antibiotic wastewater into a reactor through a water inlet of an iron-carbon micro-electrolysis reactor, and enabling a fan to blow air through an air inlet for aeration, wherein discharged water flows back into the reactor from the water inlet through a backflow pump; enabling the water to stay for 4 to 8 hours, and then discharging the water from a water outlet, thus completing treatment of the wastewater. The experimental device has the advantages of good treatment effect, long service life, simple operation and low cost.

The invention discloses a cable surface cleaning device. The device comprises a shell (1) with an inner cavity; a storage box (2) is arranged at the top of the shell (1); a cleaning box (3) is arranged in the inner cavity; the storage box (2) communicates with the cleaning box (3) to supply a cleaning agent into the cleaning box (3); a slide plate (4) is arranged in the cleaning box (3); a cable (10) can penetrate through the slide plate (4); a slide rod (13) is fixed at the top of the cleaning box (3), and is coated with a slide sleeve (12); the slide sleeve (12) is connected with the slide rod (13) for driving the slide rod (13) to slide along the slide rod (13); and a drying block (7) is additionally arranged in the inner cavity, wherein the cable (10) can penetrate through the drying block (7) after passing through the cleaning box (3). The cable surface cleaning device can perform efficient oil stain removing treatment for the cable.

The invention provides an intelligent reminding method and system, a mobile terminal and a cloud server, wherein the intelligent reminding method comprises the steps that: the mobile terminal obtains a record of communication of the mobile terminal; the mobile terminal analyzes the record of the communication to obtain interpersonal relationship information of a mobile terminal user, wherein the interpersonal relationship information comprises information of a contact and contact rule information of the contact communicated with the user; and the mobile terminal execute contact reminding on the user according to the interpersonal relationship information. According to the method provided by the embodiment of the invention, the record of the communication of the mobile terminal can be analyzed to obtain the information of the contact and the contact rule information of the contact communicated with the mobile terminal user, and thus the intelligent contact reminding is carried out on the user automatically without setting call reminding by the user, the convenience is brought for the user, the contact frequency among the users can be increased, and further the interpersonal relationship of the users is enhanced.

The invention discloses an oxidation catalyst for soot particles of a diesel and a preparation method thereof. The oxidation catalyst is prepared from a coating material and an active component impregnated on the coating material. The active component is prepared from a noble metal salt containing Pt and Pd. The total content of noble metals in the catalyst is 0.5 to 3 g/ft3, and a weight ratio ofthe noble metal Pt and the noble metal Pd is 2:1 to 10:1. The coating material is a high-cerium-content composite metal oxide, wherein the content of cerium oxide is greater than or equal to 80% by weight. The preparation method comprises the following steps: directly mixing the coating material and the noble metal salt solution of the active component; performing stirring and ball milling, and controlling and adjusting a pH value to 1.5 to 5.5, a particle diameter D50 to 2 to 7 [mu]m and a solid content to no more than 20%; and coating a carrier with a mixture obtained in the previous step and then performing calcinations so as to obtain the catalyst. The carrier slurry of the catalyst in the invention is uniform in distribution and free of the phenomenon of plugging; and the catalyst has low back pressure and high oxygen storage capacity in a practical exhaust gas purification and treatment system, and can achieve the purpose of rapidly oxidizing PM at a low temperature.

A method of removing photoresist film with high efficiency of removal and friendliness with the environment while reducing the material consumption and the cost for the ventilation facility, and an apparatus used for the method are provided. Particularly the present invention provides a method of removing a photoresist film provided on a surface of a substrate, comprising steps of in a sealed system, disposing the substrate surface having the photoresist film to contact with a photoresist film removing solution, making ozone exist in gas phase and/or solution phase in the vicinity of the liquid surface of the photoresist film removing solution, and changing a relative position between the surface of the substrate and the liquid surface of the solution to decompose or remove the photoresist film from the substarate, characterized in that the relative position is changed continuously or intermittently within a range between a position where a bottom edge of the substrate is present above the liquid surface of the solution, and another position where a top edge of the substrate is present below the liquid surface of the solution. The present invention also provides an apparatus used for the method.

The invention relates to a hierarchical porous molecular sieve and a catalyst prepared from the molecular sieve, specifically to a preparation method of a hierarchical porous Beta molecular sieve andan Ni catalyst thereof, and solves the problems of single pore structure, low utilization rate, incomplete opening, only an adsorption role, easy sintering, agglomeration and deactivation, and formation of carbon deposit. The scheme includes: stirring deionized water, sodium metaaluminate NaAlO2 and a dual template agent to obtain a clarified solution, adding fumed silica and performing stirring,then transferring the mixture into a polytetrafluoroethylene container, and conducting constant temperature heating and static crystallization in a reaction kettle, then performing cooling, and carrying out high temperature calcination, then taking nickel carbonate tetrahydrate, ammonium chloride and ammonia water, and performing stirring in deionized water, adding the molecular sieve and performing stirring, conducting hydrothermal synthesis for certain period of time, then conducting washing and pumping filtration, retaining the solid product, and conducting drying. The prepared hierarchicalporous Beta molecular sieve is rich in micro-mesoporous biphasic highly interconnected pore structure. The prepared catalyst is core-shell-like structure catalyst, and has high yield.

The invention relates to a compound fertilizer preparation method for improving the utilization rate of the phosphorus element. The method comprises the following steps: mixing molten urea or molten ammonium nitrate with a potash fertilizer and a filler to obtain a mixture; carrying out blending chelating on one or a mixture of more of potassium fulvate, ammonium humate and monoammonium phosphate and the mixture; defoaming the above blend-chelated product by a defoaming agent; sending the defoamed product to a high tower mixing tank, and carrying out high tower granulation; processing a composition comprising, by weight, 5 parts of guar gum, 3 parts of nonionic polyacrylamide and 2 parts of potassium polyacrylate to prepare a liquid with 10% of the composition, and uniformly sprinkling the surface of a granulated granular fertilizer with the liquid to wrap the fertilizer. The compound fertilizer adopting potassium fulvate or ammonium humate as an organic matter has the advantages of high content of nutrients, good dissolvability, low water content, reduction of the frequency of contact of phosphate radicals with metal ions, reduction of the curing probability of phosphorus, and improvement of the utilization rate of a phosphate fertilizer.

The invention discloses a glass linear edge grinding machine for tempered glass production. The glass linear edge grinding machine for tempered glass production structurally comprises a support, shells, a first connection shaft, a first driving motor, a first belt, a grinding wheel set and a second belt; due to the fact that an arriving and departing device is arranged between the lower ends of the inner sides of the shells and a second driving motor is started to operate, a rotating wheel is driven to rotate under the effect of a rotating shaft; under the effect of gear teeth, a concentric-square-shaped frame and an installing plate are driven to move leftwards and rightwards in a reciprocating manner at the bottom plate position; a position clamping block and a sliding rod provide a stable force; and the beneficial effect that the contact frequency of the glass grinding position is improved so that the grinding efficiency of a glass grinding device can be improved is achieved; a fixed device is arranged at the top end of the arriving and departing device; due to the fact that glass is placed at clamping groove positions of a clamping and fixing plate, and an electric pushing rodperforms operating stabilizing, the stabilizing force is improved; clamping grooves are arranged in three layers, and efficiency is improved; and foam arranged on the inner wall of the clamping grooves provides vibration buffering protection, and the beneficial effect that the protecting degree is effectively provided is achieved.