53results about How to "Extend the conveying distance" patented technology

The present invention provides an air ion conveyance device as well as an air ion conveyance system, for example, for an air conditioning facility and conveys air ions to rooms of a house etc. The air ion conveyance device has an air ion production device unit, air ducts, and a control device. The air ion production device unit is provided in a housing of a centralized ventilation device and has positive ion production devices and negative ion production devices that are alternately arranged with a spacing in between, the positive ion production devices generating positive ions in air fed from the outside, the negative ion production devices generating negative ions in the air. The air ducts are connected to joints provided at the housing and individually conveys air to rooms. The control device controls the air ion production device unit. The control device regulates, according to a request from each room, whether or not to produce air ions or the amount of production of ions.

The invention provides an arm support of a concrete pump truck, which can be folded and unfolded. The arm support of the concrete pump truck comprises seven sections of arms which are hinged in sequence. The seven sections of arms are basically arranged into five mutually staggered straight lines, and at least the last two sections of arms are on the same straight line. Because the seven sections of arms are basically arranged into five mutually staggered straight lines, the overall size of the arms can be greatly reduced, and the requirements of the road running condition of the concrete pump truck can be easily met. In addition, when the arm support is folded, the last two sections of arms are on the same straight line, thus the flexibility and the operability of the arm support fabric can be greatly improved. The invention further provides the concrete pump truck with the arm support.

An intelligent pneumatic mixer is composed of raw material mixing cabin with multiple central pipes and multiple peripheral pipes close to wall, jet spray pipe, material delivering pipeline, high-pressure feeder, valve for high-pressure delivering pipe, multi-stage multi-conic diffusion separator with volute casing, and high-pressure pulse duster.

The invention relates to a concrete spraying technology. A long-distance wet type concrete spraying method is characterized in that three conveying pipelines including a powdery-accelerating-agent-containing sand gravel conveying pipeline, a cement conveying pipeline and a high-pressure water path are adopted; in the powdery-accelerating-agent-containing sand gravel conveying pipeline, stirred powdery-accelerating-agent-containing sand gravel mixed materials are conveyed into the sand gravel conveying pipeline by a sand gravel conveying device; in the cement conveying pipeline, cement is conveyed into the cement conveying pipeline by a cement conveying device from a cement storage device; the tail end of the cement conveying pipeline is communicated with the sand gravel conveying pipeline and then enters a mixing pipeline; and the high-pressure water path is communicated with a position, with a distance of 0 to 15m from a spray head, on the mixing pipeline. Under the effect of air pressure, the sand gravel materials and the cement are stirred and mixed; the mixing effect is good; the rebounding of spraying materials can be effectively reduced; the occupied space is small; and the limitation of using large-scale stirring and conveying equipment for wet spraying is avoided. The long-distance wet type concrete spraying method has the advantages that the production efficiency is high; the moving is convenient; the maintenance is easy; and economic and social benefits are great.

The invention discloses an optical fibre transmission type rotary encoding device. The optical fibre transmission type rotary encoding device comprises an energy light source for providing a working energy, an energy optical fibre for transmitting a light source signal provided by the energy light source, an encoding unit for performing energy conversion, decoding processing and communication output based on the light source signal provided by the energy light source, and an upper computer for receiving the communication output signal of the encoding unit and controlling the working of the encoding unit, wherein the energy light source is connected to the encoding unit via an energy optical fibre; and the upper computer is connected to the encoding unit via a communication optical fibre. With the adoption of the optical fibre transmission type rotary encoding device disclosed by the invention, defects such as incapacity of being used in occasions with a high-insulation requirement in the prior art can be overcome; and the optical fibre transmission type rotary encoding device has the advantages of being capable of being used in occasions with a high-insulation requirement, being far in conveying distance, and high in anti-electromagnetic interference capacity.

An intelligent pneumatic mixer is composed of raw material mixing cabin with multiple central pipes and multiple peripheral pipes close to wall, jet spray pipe, material delivering pipeline, high-pressure feeder, valve for high-pressure delivering pipe, multi-stage multi-conic diffusion separator with volute casing, and high-pressure pulse duster.

The invention discloses long-distance pulverized coal conveying equipment, which comprises a screw conveying pump, a pulverized coal conveying pipe connected with the front end of the screw conveying pump and an air pipe connected with the rear end of the screw conveying pump. The key technique of the equipment is that an auxiliary air pipe, of which one end is communicated with the air pipe through a ball valve or a stop valve and the other end is communicated with the pulverized coal conveying pipe through an arranged elbow, is arranged between the pulverized coal conveying pipe and the air pipe. The equipment requires small investment and floor area, operates smoothly and can convey a large amount of pulverized coal and realize long-distance pulverized coal conveying.

The invention provides a long-distance concrete sprayer and relates to the technical field of concrete spraying equipment. The long-distance concrete sprayer comprises an underframe, a cylinder barrelmechanism, a rotor mechanism and a hydraulic system. The cylinder barrel mechanism comprises an upper cylinder barrel part and a lower cylinder barrel part. The cylinder barrel, a pushing piston, a sealing piston and a sealing box body of the sealing piston are matched one another, the sealing piston and the cylinder barrel form an end surface seal and a material collecting box is arranged on theend part of the lower cylinder barrel for collecting excess materials accumulated by the pushing piston. The rotor mechanism primarily comprises a rotor shell, a rotor and a cone-shaped distributor,and in a rotating process of the rotor, materials in stock bins are sprayed continuously. The hydraulic system comprises a hydraulic fuel tank and a motor and provides power to the sprayer. The sprayer in a form of end surface seal avoids friction between the sealing part and concrete and the cylinder barrel. The pushing piston can be a rigid piston which achieves sealing by means of the sealing piston. The rotor mechanism distributes the concrete uniformly to achieve pulse-free continuous spraying. The long-distance concrete sprayer also has the advantages of long-distance dust-free conveyance, being in long in service life and the like.

The invention relates to a mining method for jetting concrete in a wet type; a method comprises the following steps: preparing cement slurry; stirring gravel mixing material; starting air source to input high pressure air to a gravel mixing material transport pipeline in a jetting procedure; and inputting the cement slurry to a cement slurry transport pipeline through transport equipment; after jetting the cement slurry by a nozzle, adding the gravel mixing material to a jetting machine; under the action of the high pressure air, mixing and stirring the cement slurry and the gravel mixing material; finally, jetting the concrete from the nozzle. According to the invention, the method depends on current jetting equipment; a transport distance (larger than or equal to 60m) of jet concrete is can be increased greatly on a condition of ensuring invariable wet-type concrete jetting advantages; simultaneously, the method effectively avoids problems that large-scale stirring is used hardly and concrete transport equipment is limited under a coal well; production efficiency and jetting quality are improved greatly; in addition, powder dust concentration near the jetting machine is less than or equal to 10mg / m<3>.

The invention relates to an installation method of a main machine and auxiliary machine separated movable radar communication extension set detection device. The method comprises the steps of firstly,installing a radar supporting device in a cave or a culvert; and then, installing a radar head device on the radar supporting device. The method for installing the radar supporting device in the caveor the culvert comprises the installation steps that firstly, the cave used for radar storage and work is built at the hillside or the hilltop; then, a supporting rack assembly, a hydraulic pump station and a generator set are installed on the ground of the cave; secondly, a supporting lifting driving piece is installed on the supporting rack assembly; thirdly, a supporting lifting top frame is installed on the supporting lifting driving piece; then, a supporting auxiliary swing arm, supporting middle connecting rods and a supporting hinge swing rod are sequentially installed between the supporting lifting top frame and the supporting rack assembly; and then, a support mounting chassis is mounted between the supporting middle connecting rods.

The invention relates to a heptafluoropropane fire extinguishing system. The heptafluoropropane fire extinguishing system comprises a fire extinguishing agent storing tank, the fire extinguishing agent storing tank is provided with a storing tank pressurizing control valve, the storing tank pressurizing control valve communicates with a pressurizing gas storing bottle assembly through a pressurizing gas pipeline, the fire extinguishing agent storing tank is further provided with a fire extinguishing agent releasing control valve, and a zone control valve is connected to the fire extinguishing agent releasing control valve through a fire extinguishing agent pipeline; a pipeline pressurizing control valve is arranged between the pressurizing gas pipeline and the fire extinguishing agent pipeline; the heptafluoropropane fire extinguishing system further comprises a control system, a weight detection device is arranged at the bottom of the fire extinguishing agent storing tank, and the control system is used for acquiring a signal of the weight detection device and controlling the fire extinguishing agent releasing control valve, the storing tank pressurizing control valve and the pipeline pressurizing control valve to be switched on and switched off. According to the heptafluoropropane fire extinguishing system, the weight detection device is used for monitoring the releasing amount of a fire extinguishing agent, and therefore the fire extinguishing system can achieve precise and quantitative releasing, has the higher usability and can flexibly distribute the fire extinguishing agent; meanwhile, the pipeline pressurizing control valve is arranged, and therefore it is guaranteed that the fire extinguishing agent can achieve the longer conveying distance.

The invention belongs to the field of bundle tubes, and in particular relates to a multi-channel optical cable bundle tube, which includes a protective cover, a solid columnar body is arranged inside the protective cover, and a reinforcement cavity is arranged at the center of the solid columnar body along its axial direction. There is a tensile tube, and there are multiple optical cable placement cavities evenly distributed around the reinforcement cavity. There is a lubrication cavity between two adjacent optical cable storage cavities. The lubrication cavity is connected with the optical cable storage cavity through multiple infusion channels. There is a lubricant used to reduce the friction between the optical cable and the cavity where the optical cable is placed. A reinforcement tube is fixedly connected to the side wall of the lubrication cavity away from the reinforcement cavity. The other end of the reinforcement tube penetrates radially to the outside along the solid cylindrical body. On the protective cover A connecting pipe corresponding to the position of the reinforcing pipe is provided. The invention can overflow the lubricant in the whole process by setting the lubricating cavity, reduce the friction force between the optical cable and the optical cable placement cavity, increase the conveying distance, and thus improve the laying efficiency.

The invention relates to a novel multifunctional sludge heat pump drying machine, and belongs to the field of sludge drying machines, the novel multifunctional sludge heat pump drying machine comprises a drying box main body, a ventilation system bearing box, a feed inlet and a discharge mechanism, a first drying box conveying belt, a second drying box conveying belt and a third drying box conveying belt are arranged in the drying box body, the bottoms of the ventilation system bearing box and the drying box body are fixedly connected with bottom supporting frames, and the bottom supporting frames are fixedly connected to the supporting table. According to the novel multifunctional sludge heat pump drying machine, it is guaranteed that the heating capacity of sludge in the drying box body is good, heating is uniform, the sludge drying effect is good, intermittent discharging can be carried out when dried sludge is discharged, the dried sludge forms pile-by-pile finished products to be discharged, and the drying efficiency is improved. Finally, workers can conveniently collect and package the dried sludge finished product.