35results about How to "Easy and safe to operate" patented technology

The invention relates to a seating-type internal mixer which comprises a base, a mixing chamber, a transmission mechanism, rotors, a discharging mechanism, a feeding chamber, a material pressing mechanism and a feeding mechanism, wherein the mixing chamber is mounted above the base; the two rotors are mounted in the mixing chamber; the transmission mechanism is mounted on one side of the mixing chamber; the feeding chamber is mounted above the mixing chamber; the feeding chamber is communicated with the mixing chamber; a feeding door is arranged on one side of the feeding chamber; the feeding mechanism drives the feeding door to move upwards to open the hermetically sealed feeding chamber. According to the seating-type internal mixer, the structural design is reasonable and compact, the advantages of a falling type internal mixer and a turnover type internal mixer are integrated, the structural defects of the conventional internal mixer are overcome, the production speed is high, the requirement on the height of a factory space during installation is low, the space is economized, the mixing capacity is high, the mixing time is short, the production efficiency is high, the degree of automation is high, the product quality and the working environment are improved, the operation is safe and convenient, the labor intensity is reduced, and the labor cost is reduced.

The invention discloses an irradiation cross-linking low-smoke halogen-free sheath material for a photovoltaic cable, wherein the irradiation cross-linking low-smoke halogen-free sheath material comprises the following components in parts by mass: 10-30 parts of an ethylene-vinyl acetate copolymer, 5-20 parts of ethylene propylene diene monomer, 5-20 parts of high-density polyethylene, 5-30 partsof aluminum hydroxide, 5-35 parts of magnesium hydroxide, 1-10 parts of diethyl aluminum hypophosphite, 1-5 parts of a compatilizer, 0.5-3 parts of a cross-linking sensitizer, 0.5-2 parts of an antioxidant, 1-5 parts of a lubricant and 2-5 parts of carbon black. By adding the components according to the specific ratio, the sheath material ensures good mechanical properties and good processabilitywhile prolonging the service life and enhancing the light transmittance and the flame retardancy in smoke.

Belonging to the field of catalytic chemistry, the invention relates to a preparation method of a supported heteropolyacid catalyst. The method includes the steps of: dipping a carrier material in a heteropolyacid aqueous solution and performing stirring to obtain a pulp; placing the pulp in a N2 environment, raising the temperature and increasing the pressure to make N2 reach a supercritical condition and sustaining the state for 2-6h to obtain a catalyst crude product; and separating and drying the catalyst crude product to obtain the supported heteropolyacid catalyst. In addition, the invention also relates to the supported heteropolyacid catalyst prepared by the method and application thereof in conversion of glycerin to acraldehyde. The method has the advantages of simple operation, mild conditions, and good safety. The prepared supported heteropolyacid catalyst has good dispersibility, high catalytic activity, and is easy to recover. The reaction of conversion of glycerin to acraldehyde under the catalysis of the catalyst achieves excellent conversion rate, selectivity and yield, and effectively alleviates the loss of the catalyst active components.

The invention discloses a pistol-type circumcision anastomat with a safety catch; the circumcision anastomat comprises a glans penis base, a regulating rod, a regulating handle, a cylindrical knife, a suturing nail ejecting drum, a hollow ejector rod, a nail cartridge ring and suturing nails arranged inside the nail cartridge ring, wherein the cylindrical knife is sleeved inside the suturing nail ejecting drum in a mode of mounting coaxially; the circumcision anastomat further comprises a pistol body and a trigger transmission mechanism; the pistol body is composed of a tubular body part, a main shell part and a handle part; the trigger transmission mechanism is composed of a trigger, a transmission piece, a transmission arm, a swing arm, a sliding block and a reset spring; the safety catch is arranged on the trigger; and the safety catch comprises a hinge shaft, a supporting rod, a button, a sliding block, a reset spring and a guide groove. The circumcision anastomat disclosed by the invention, by adding the safety catch and by designing the safety catch, is safer and more convenient in operation, and the circumcision anastomat fully manifests the design concept of being user-friendly.

The invention belongs to the technical field of pepper harvesting tools and particularly relates to a pepper picking machine with adjustable operation height and angle. The pepper picking machine withadjustable operation height and angle comprises a battery, a power cord, a handle, a controller, a motor, a speed reduction mechanism, a telescopic rod, a drive shaft, a damping bolt, an angle adjustment lever, a power conversion mechanism, a reciprocating cutter and a switch button, wherein the battery is connected with the controller through the power cord; the controller is connected with themotor and embedded in the handle; the switch button is disposed on the handle and connected with the controller; the speed reduction mechanism is respectively connected with the motor and the drive shaft; the telescopic rod is connected to the handle; the angle adjustment lever is connected with the telescopic rod through the damping bolt; the power conversion mechanism is respectively connected with the drive shaft and the reciprocating cutter. The pepper picking machine with the adjustable operation height and angle has the advantages of making picking safe and labor-saving and increasing continuous operation time through conversion of high and low level picking models during the picking process of the pepper, achieving a wide range of precise picking by adjusting operation height and angle, being compact in overall structure, and being high in picking efficiency.

An inverted machine has a supporting bracket, an orientating assembly, a connecting frame and a table. The supporting bracket has two supporting shafts, two mounting jackets and a locating sheath mounted around one of the mounting jackets. The orientating assembly is connected to the supporting bracket and has a brake locator, a rotating shaft, two clamping slices, a pulling rod, a spring and a cam device. The brake locator is connected to the mounting jacket that is connected to the locating sheath. The rotating shaft is connected to the other mounting jacket. The clamping slices are pivotally connected to the brake locator. The pulling rod is connected to the clamping slices. The spring is mounted around the pulling rod between the clamping slices. The cam device is connected to the pulling rod. The connecting frame is connected to the orientating assembly. The table is mounted on the connecting frame.

The invention discloses a low-temperature-resistant, oil-resistant, torsion-resistant and high-flame-retardant sheath material and a preparation method thereof. The low-temperature-resistant, oil-resistant, torsion-resistant and high-flame-retardant sheath material comprises the following components in parts by mass: 60 to 80 parts of chlorinated polyethylene, 20 to 40 parts of chlorosulfonated polyethylene, 0-10 parts of an ethylene-vinyl acetate copolymer, 60-100 parts of talcum powder, 20-40 parts of calcium carbonate, 20-40 parts of magnesium hydroxide, 0-10 parts of a flame retardant, 20parts of carbon black, 6 parts of magnesium oxide, 5 parts of red lead, 10-25 parts of a plasticizer, 10 parts of chlorinated paraffin oil, 1.5 parts of an antioxidant, 5 parts of a cross-linking agent and 4 parts of dicumyl peroxide. By adding the components and proportioning the components according to a specific ratio, the sheath material is ensured to have favorable mechanical properties and processability while prolonged in service life and enhanced in low-temperature resistance, oil resistance, torsion resistance and flame retardancy.

The invention relates to a material conveying device, in particular to a tubular bag type fluidized bed device for a bulk powder material tank truck, which overcomes the shortcomings of the conventional large-chute type fluidized bed device. The tubular bag type fluidized bed device comprises a chute type fluidized bed consisting of tilting fluidized bed surfaces, wherein a master air chamber is arranged below the tilting fluidized bed surfaces; each tilting fluidized bed surface comprises a fluidized bed plane, a fluidized bed slope and a lateral bevel board which are laid by fluidized bed components; the fluidized bed component comprises a hollow tube bag type air chamber which is formed by connecting an air permeation layer and an enclosed later and provided with a corrugated lining plate; and one end of the hollow tube bag type air chamber of each fluidized bed component is provided with a blast pipe communicated with the master air chamber and the other end of the hollow tube bag type air chamber is sealed by a trim strip. The fluidized bed device fully utilizes the tank space, reduces the center of gravity for car loaded, increases the load, reduces the tank capacity, increases the effective load volume; increases the fluidization area, facilitates the fluidization of the bulk materials, increases the unloading speed, and has the characteristics of convenience and safety of operation, good working condition and the like.

The invention discloses an electric energy device used for adjusting hybrid power of an intermediate voltage power system, and relates to the technical field of power electronics. Three phase cascading units are in star connection; each phase cascading unit is composed of n full-bridge inversion units, n large capacitor banks, n automatic switches and n battery pack units, the n full-bridge inversion units are connected in series, the head end of the first full-bridge inversion unit of each cascading unit is connected with a corresponding electric reactor, and the tail end of the nth full-bridge inversion unit of each cascading unit is connected with the tail ends of the nth full-bridge inversion units of other two cascading units; intermediate voltage grid connection is achieved due to the fact that the multiple single-phase full-bridge inversion units are cascaded, reactive power and transient-variation active power are adjusted through large capacitors on a direct-current bus of each unit, and slow-variation active power is adjusted through the battery pack units on the direct-current bus of each unit; besides, a grid connection transformer is not needed, little floor space is occupied, and the device is easy to maintain.

The invention relates to the technical field of medical processes, in particular to a method for preparing high-purity tolperisone hydrochloride. According to the method disclosed by the invention, the addition amounts of methylbenzene, anhydrous aluminum trichloride and propionyl chloride, a reaction temperature and reaction time in a Friedel-Crafts acylation reaction are strictly controlled; andafter a Mannich reaction is finished, cooling to 20-30 DEG C is performed, and isopropanol and isopropyl ether are added are added for heat-preserved crystallization for 2 hours or longer; and the solid-liquid separation is conducted to obtain a crude tolperisone hydrochloride product. The method for preparing the high-purity tolperisone hydrochloride can reduce Friedel-Crafts acylation side reactions, improve product purity and product yield, is environmentally friendly, and is easy, convenient and safe to operate.

The invention relates to comprehensive development and utilization of a machine design, physical metallurgy and a casting furnace and belongs to casting system engineering. Aiming to reduce the unnecessary loss and improve the product quality of casting enterprises, the invention designs a novel durable casting furnace. A dynamic physicochemical numerical value of a whole process is finished by the control of a computer and the requirements of a product design are met. A cylindrical grid type finance liner framework is designed on the structure of a furnace body; temperature-resisting materials including high-smelting-point 2*20 circular iron, gold powder, quartz, sand and the like are poured on the finance liner framework to form a high-quality furnace liner; an electric furnace grate is in a coil shape and heats uniformly so as to conveniently raise and control a furnace temperature. Tapping liquid of the casting furnace is driven by a speed reducer and is finished by a linkage mechanism, so as to realize automatic control and safety. The quality of molten iron in the casting furnace is required to be detected for three times in each hour to detect various physicochemical indexes until the yield of the molten iron is up to more than 98%.

The coupling current is applied to the grounding wire of a circuit breaker bus side test phase line, and the induction current is detected from the grounding wire of a circuit breaker load side test phase line, so that whether the grounding wire of the circuit breaker bus side test phase line and the grounding wire of the circuit breaker load side test phase line form a loop or not is judged; therefore, the opening and closing action time of the high-voltage circuit breaker can be deduced, and the opening and closing time of the high-voltage circuit breaker in a high-voltage line can be tested. According to the invention, the opening and closing test is carried out on the high-voltage circuit breaker through the coupling current and the induction current, the high-voltage circuit breaker does not need to be separated from the high-voltage line, the opening and closing time test of the high-voltage circuit breaker in the high-voltage line is realized, and the test safety is ensured.

The invention relates to a mutual inductor mold, in particular to a glass fiber reinforced plastic mutual inductor mold and a manufacturing method thereof. The glass fiber reinforced plastic mutual inductor mold comprises a bottom plate, a left mold and a right mold, wherein the left mold and the right mold are arranged on the bottom plate and are fixedly connected; the left mold and the right mold are both made of glass fiber reinforced plastics. Inserts are correspondingly arranged on the connecting end faces of the left mold and the right mold, and every two corresponding inserts are connected through a connecting bolt. By utilizing the characteristics of the glass fiber reinforced plastic material, the glass fiber reinforced plastic composite material has the advantages of light weight, hardness, stable performance and high mechanical strength, and can relieve great burdens for enterprises in the aspects of manufacturing process, manufacturing cost, processing period and the like.