10results about How to "Increase running resistance" patented technology

The plate heat exchanger with the anti-blocking function comprises a heat exchange plate set, a filter screen, a drainage branch pipe and a stop valve, the heat exchange plate set is provided with a fluid input channel, a fluid output channel and a flow channel, the fluid input channel and the fluid output channel are communicated through the flow channel, and the filter screen is installed in the fluid input channel; the output end of the fluid input channel is communicated with the input end of the fluid output channel through a drainage branch pipe; and the stop valve is arranged on the drainage branch pipe. Through cooperation of the drainage branch pipes and the stop valves, the problem that the plate heat exchanger is blocked when fluid flowing through the flow channels of the heat exchange plate set is mixed with a large number of impurities or large particles is solved, and then the situation that the maintenance cost is increased due to the fact that the plate heat exchanger needs to be frequently disassembled and cleaned due to the blocking problem in daily use and maintenance is reduced; the problems that during cleaning, the heat exchange plate is prone to being bent and deformed and cannot be used, and quick-wear parts are frequently replaced, so that cost is increased are solved.

The invention discloses a roasting device and a roasting process for preparing molybdenum concentrate in the technical field of molybdenum metal roasting. The device comprises a roasting furnace, wherein a cavity is arranged in the roasting furnace, a stirring rake is arranged in the cavity, and a central axis is rotatably arranged in the roasting furnace: a branch of the stirring rake is provided with a detachable cleaning structure, and a detachable positioning guide structure is arranged in the roasting furnace; a connecting ring is arranged in the cavity, and a guide pin slidably arranged with a movable groove is fixedly arranged on the inner wall of the stirring rake; a driving source for driving the central axis to rotate is installed in the roasting furnace; the cleaning structure comprises: a sliding sleeve, which slides with the stirring rake and is detachable; a clearance piece, which slides horizontally with the sliding sleeve; a cleaning scraper, which is rotatably arranged with the clearance piece, and the cleaning scraper is provided with a clearance groove; a pretreatment scraper, which is rotatably arranged with the cleaning scraper, and when the roasting is completed and the residual temperature of the roasting furnace still exists, the pretreatment scraper is first used for pretreatment, and then the compacted residual material is scraped off by the cleaning scraper, so that the cleaning difficulty after the residual material is completely compacted can be reduced.

This utility model provides a high-efficiency and energy-saving integrated tank-pump pressure-stabilizing water tank, relating to the field of water supply equipment processing technology. It includes an integrated tank-pump pressure-stabilizing water tank assembly, with a filter component on its side, and reinforcing and buffer components on its top. The assembly comprises a water tank and an energy-saving pressure-stabilizing pump. In this utility model, multiple filter elements are installed inside the filter box, which effectively filters the water source, removing impurities and particulate matter to prevent them from accumulating inside the tank. The activated carbon box further adsorbs microorganisms in the water source, further purifying the water quality, reducing corrosion and wear of the tank, extending the service life of the integrated tank-pump pressure-stabilizing water tank assembly, and maintaining the cleanliness of the water inside the tank, preventing water quality deterioration due to bacterial growth caused by impurities.

The utility model relates to the technical field of electroplating, and discloses electroplating equipment and a conveying mechanism thereof. The conveying mechanism comprises a shell, a first material opening, a conveying channel and a second material opening which are sequentially communicated are formed in the shell, and the second material opening is adjacent to and communicated with an electroplating bath of the electroplating equipment; the conveying device is installed in the conveying channel and used for conveying the materials from the first material opening to the second material opening, a water retaining assembly is arranged between the conveying device and the second material opening, and a passing gap allowing the materials to pass through is defined in the water retaining assembly; the suction knife assembly comprises a pump body, a liquid suction pipeline and a suction knife body, the suction knife body is installed between the conveying device and the second material opening and is adjacent to the water retaining assembly, and a water suction opening of the suction knife body is communicated with the passing gap. According to the utility model, by introducing the suction knife assembly and the design of dynamic communication between the suction knife assembly and the passing gap, the defects of the existing electroplating equipment conveying mechanism in the aspects of overflow liquid recovery, material pollution control, maintenance cost and the like are overcome.

The utility model discloses a multi-section telescopic precise lifting rod positioning device, and belongs to the technical field of telescopic rods. The multi-section telescopic precise lifting rod positioning device comprises an aluminum profile pipe and a base, the base is located at the bottom of the aluminum profile pipe, a plurality of guide aluminum sleeves are arranged in the aluminum profile pipe, the guide aluminum sleeves are connected with the aluminum profile pipe in a telescopic mode, the guide aluminum sleeves are connected in a sliding mode, and a top plate is arranged at the tops of the guide aluminum sleeves. In order to solve the problems that a first-stage telescopic rod is too large in telescopic ratio and cannot meet the requirements of low basic requirements and large stroke, and a multi-stage lifting rod is provided with a trapezoidal screw rod and is large in rotating resistance and cannot realize synchronous lifting, or the transmission efficiency is further reduced due to the fact that the structure becomes complicated due to synchronous lifting. Power is transmitted to the output gear through the synchronous gear, the output gear is connected with the ball screw, and lifting of the second-stage pipe is achieved.

The invention discloses a vehicle door operation system resistance test method and test system and a vehicle door, and the method comprises the following steps: obtaining historical data of a vehicle door operation system during normal operation, and respectively sorting out a vehicle door glass operation current threshold value, a rearview mirror folding current threshold value and a rearview mirror lens adjustment current threshold value at different environment temperatures; acquiring a current current value and a current environment temperature value; the magnitude of the current current value is judged, and the type of the currently-running driving mechanism is determined according to a magnitude result; according to the type of the currently running driving mechanism, the current environment temperature value and the sorting result, a current threshold value corresponding to the currently running driving mechanism is determined; the current current value is compared with the product of the current threshold value and the deviation coefficient, and when the current current value is not smaller than the product of the current threshold value and the deviation coefficient, the running resistance of running of the automobile door glass driven by the currently running driving mechanism or folding of the rearview mirror or adjustment of the rearview mirror lens is large. The method is simple and feasible in test and reliable in test result.

The utility model provides a kind of material conveying energy-saving device on functional fertilizer energy-saving production line, it is related to fertilizer production conveying technical field, including conveying frame, the inner chamber of conveying frame is equipped with conveyor for conveying functional fertilizer, the top of conveying frame is fixedly connected with shielding frame, the left and right sides of the inner chamber of shielding frame are fixedly connected with shielding plate, the side of the top of shielding frame is equipped with the air extraction component for collecting fertilizer volatile heat energy, the other side of conveying frame bottom is equipped with cleaning assembly, the cleaning assembly is used to automatically clean the surface of conveyor belt and is handled, to guarantee conveying efficiency and reduce energy consumption.

The utility model relates to the technical field of movable wooden doors, in particular to a slideway type movable wooden door with good sealing performance, which comprises a door frame and a wooden door slidably mounted in the door frame, retention mechanisms are fixedly mounted in two sides of the door frame, and a dustproof mechanism is arranged at the joint of the lower portion of the wooden door and the door frame. The fixing mechanism comprises positioning blocks fixedly installed on the two sides of the wooden door and fixing seats fixedly installed on the two sides of the door frame, corresponding installation plates are arranged on the fixing seats, the installation plates are in sliding connection with the door frame, positioning rods are fixedly installed on the installation plates, and the positioning rods and the positioning blocks are distributed correspondingly. And the positioning rod is sleeved with two groups of symmetrically distributed positioning frames. Anti-collision protection between the wooden door and the door frame in the moving process of the wooden door on the door frame is achieved through the arranged retention mechanism, closing and locking between the door frame and the wooden door are achieved through the arrangement of the two sets of positioning frames and positioning blocks, and the situation that the sealing performance of the device is affected due to deformation of the door frame and the wooden door caused by collision between the door frame and the wooden door is avoided.

The invention discloses an intelligent suspension conveying system for workpiece Dacromet spraying, and relates to the technical field of suspension conveying systems.The intelligent suspension conveying system comprises a guide rail, a suspension chain is laid in the guide rail, a driving structure is installed on the guide rail, and the intelligent suspension conveying system further comprises a positive pressure dustproof mechanism which comprises an air pump installed on the guide rail; a rubber pipe is fixedly laid in the guide rail through a clamping piece, air outlets are evenly formed in the rubber pipe, and only the bottom of the guide rail is provided with an opening. Air is continuously conveyed into the guide rail through the air pump and the rubber pipe, so that a micro-positive pressure environment is formed in the guide rail, and atomized coating drifting upwards is prevented from entering the guide rail; the problem that after a suspension conveying system is used for a long time, paint is accumulated on a suspension chain, and the dead weight is increased is solved, in addition, when the suspension chain hunches up and vibrates in the equipment self-inspection process, the rubber pipe can be used for buffering, collision between the suspension chain and the inner wall of the guide rail is reduced, and the effect of protecting the suspension chain is achieved.

The utility model discloses a device for automatically cleaning accumulated dust on the surface of a belt conveyor, which comprises a mounting frame, a conveying belt arranged inside the mounting frame, a driving motor fixedly mounted on one side of the mounting frame, a support fixedly connected to the bottom of the mounting frame, a sliding rod slidably connected to the inside of the support, and a displacement frame fixedly connected to the top of the sliding rod. A cleaning assembly is arranged in the displacement frame, and one side of the displacement frame is fixedly connected with a fixing block. The utility model aims to solve the problems that when a traditional belt conveyor conveys materials, dust is adhered to a conveying belt, so that the friction resistance of the conveying belt is increased, and the conveying efficiency is reduced. The problems that dust accumulation can increase running resistance of the belt conveyor, so that energy consumption of equipment is increased, dust adhesion can accelerate abrasion of the conveyor belt, the service life of the conveyor belt is shortened, and the maintenance cost of the equipment is increased are solved.