55results about How to "Reduce disassembly process" patented technology

The invention provides a membrane bioreactor device for retarding membrane pollution and a sewage treatment method. The membrane bioreactor device is characterized in that a three-phase separator is arranged in a membrane bioreactor, and a sewage treatment device with a membrane reaction zone at the upper part and a contact oxidation zone at the lower part is formed; sewage enters the contact oxidation zone from the bottom of the reactor and then enters the membrane reaction zone from a slit of the three-phase separator; under the combined action of the absorption of activated sludge and the interception of membranes, the treatment of the sewage is realized; with the adoption of a rotating membrane filtering component, the rotating shear force is increased to retard the membrane pollution, and meanwhile, the fact that all the membranes have uniform cleaning strength is guaranteed, and cleaning dead corners are reduced; the three-phase separator is connected with a gas guide tube, so that residual gas in the contact oxidation zone is guided into the membrane reaction zone at the upper part to be used as a gas washing source of a membrane component, therefore the energy consumption is reduced; online ultrasonic cleaning and chemical cleaning equipment is arranged to reduce the assembly and disassembly procedures in the membrane cleaning process. The sewage treatment device and method have the advantages of high treatment efficiency, small membrane pollution, stable effluent water quality and good convenience in operation and management.

The invention belongs to the field of centrifugal pumps and particularly relates to a series-parallel connection centrifugal pump which has the flow channel series-parallel connection switching capacity. The series-parallel connection centrifugal pump comprises a pump body and a pump shaft. The pump shaft is provided with two impeller parts, and a first cavity channel and a second cavity channel are formed in a pump cavity corresponding to the two impeller parts. A first bypass flow channel, a second bypass flow channel, a first liquid outlet flow channel and a second liquid outlet flow channel are formed in the pump body, wherein the first bypass flow channel and the second bypass flow channel are used for communicating an outlet of an external liquid inlet pipeline and an inlet of the first cavity channel as well as the outlet of the external liquid inlet pipeline and an inlet of the second cavity channel respectively, and the first liquid outlet flow channel and the second liquid outlet flow channel are used for communicating an inlet of the external liquid outlet pipeline and an outlet of the first cavity channel as well as the inlet of the external liquid outlet pipeline and an outlet of the second cavity channel. A branch flow channel is further arranged in the pump cavity, one end of the branch flow channel is communicated with a liquid inlet of the second cavity channel, and the other end of the branch flow channel is communicated with the first liquid outlet flow channel to form a three-way joint. The series-parallel connection centrifugal pump further comprises a switching part, a switching assembly is arranged at the second liquid outlet flow channel, and the switching assembly and the switching part are in electric linkage or mechanical linkage. Due to the linkage structure, the series-parallel connection centrifugal pump is reasonable and practical in structure, long in service life and reliable and stable in work.

The invention provides a watch and a watchband module thereof. The watchband module comprises a charging module, wherein the charging module comprises a USB (universal serial bus) connector, a charging wire and a charging contact; the USB connector and the charging contact are respectively connected to two ends of the charging wire; a large portion of the charging wire is inlaid in a main body of the watchband module; and the USB connector and the charging contact are exposed outwards. When the charging module is used for charging the watch, the charging contact is combined to the watch so as to charge the watch. According to the watch in an embodiment, the watch can be charged, and a watchband can be changed randomly as needed. Moreover, because the watchband is detachably connected to a shell, a special-purpose tool is omitted when the watchband is assembled or disassembled, assembling or disassembling procedures can be reduced, and assembling or disassembling time is shortened.

The invention discloses an online dynamic balance correction method of a large-size draught fan impeller, belonging to the field of equipment overhauling, and aiming at reducing impeller assembling and disassembling procedures and shortening an overhauling period. The online dynamic balance correction method comprises the following steps: A, connecting one end of a vibration detection balancing apparatus with a driving end of the draught fan impeller on line and connecting the other end of the vibration detection balancing apparatus with a driven end of the draught fan impeller; marking a vibration starting phase point on a wheel disc of the impeller; B, starting the vibration detection balancing apparatus and detecting an original vibration amplitude and an original phase of a bearing bush at the driving end of the draught fan impeller; C, calculating balance counter weight needing to be added and a phase of the added balance counter weight; and D, adding the balance counter weight to the back surface of the impeller. According to the online dynamic balance correction method of the large-size draught fan impeller, after the balance counter weight and the mounting position of the balance counter weight are measured in a large-size draught fan installation site by utilizing the vibration detection balancing apparatus, the balance counter weight is mounted on the impeller and the draught fan impeller does not need to be assembled and disassembled, so that the impeller assembling and disassembling procedures are reduced and the overhauling period is shortened.

The invention discloses a railway slope prefabricated and assembled post-poured framework slope protection structure which comprises a plurality of slope protection units, inspection ladder steps, concrete foot guards and post-poured concrete core columns. The slope protection units extend longitudinally and vertically on a railway slope in a repeated combination mode; each slope protection unit is formed by assembling a main framework and a branch framework and used for defining the pouring range of the post-poured concrete core columns on the slope surface; the inspection ladder steps are arranged on the side surfaces of the slope protection units; the concrete foot guards are arranged at the lower parts of the slope protection units; the post-poured concrete core columns fill external gaps between the slope protection units. Precast cement boards are adopted, the weight of each precast cement board is small, people can conveniently carry and assemble the precast cement boards, the bottoms of the precast cement boards are effectively fixed through steel drill rods and concrete cushion blocks, and the tops of the precast cement boards are fixed through fixing clamping grooves. Compared with a traditional steel formwork, the using number of concrete formworks of the framework protection structure is reduced to 0, the formwork disassembling process is omitted, and construction is more efficient.

The invention discloses a cargo outer packing telescopic folding frame. The cargo outer packing telescopic folding frame comprises an upper folding frame, a lower folding frame and telescopic supports, wherein the telescopic supports are fixed and connected through square tube supports on the upper folding frame and the lower folding frame, supporting connecting rods are arranged at four corners of the upper folding frame and the four corners of the lower folding frame respectively, one end of each supporting connecting rod is fixed on the folding frame in a hinged mode, and the other end of each supporting connecting rod is fixed on a nut of the folding frame through a hook. According to the cargo outer packing telescopic folding frame, foldable storage and reutilization can be realized,and resources can be effectively saved; mounting and dismounting do not need external tools, and time and labor are saved; and the size can be flexibly adjusted according to the specification of cargoes, and the telescopic folding frame is wide in application range. In addition, the structure is firm and reliable, strong in bearing capacity, and good in resisting effect on external force influencein circulation and storage processes. The cargo outer packing telescopic folding frame is suitable for being used in the logistics field and is one of the current wooden outer packing frames.

The invention discloses a multifunctional intelligent automatic pipeline ventilator. The multifunctional intelligent automatic pipeline ventilator comprises a main air pipe, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is arranged at one end of the main air pipe, and the air outlet pipe is arranged at the other end of the main air pipe; noise reduction assemblies are arranged in the air inlet pipe and the air outlet pipe correspondingly; clamping assemblies are arranged in grooves; fixing rings are fixedly connected to the inner walls of the two ends of the main air pipe correspondingly; triangular clamping grooves are formed in the fixing rings; and a filtering assembly is arranged in the position, located on one side of the fixing rings, in the main air pipe. According to the multifunctional intelligent automatic pipeline ventilator, the noise reduction assemblies are used for guiding the air direction in a centralized manner, uniform diffusion is conducted, and the ventilation effect is more excellent; meanwhile, noise is reduced to the maximum degree, and the device can meet the requirement for the noise index during work; and through cooperation of the clamping assemblies and the triangular clamping grooves, the procedure that workers disassemble and assemble the device is effectively reduced, and the work efficiency is greatly improved.

The invention discloses a storage device for blockchain data storage, and the device comprises a base; a protection seat is arranged on the outer surface of the top end of the base, a protection mechanism is arranged in the protection seat, a protection box is arranged on the outer surface of the top end of the protection seat, and a storage box main body is arranged in the protection box; a fixing mechanism and a moving mechanism are arranged in the protection box, and a rotating mechanism is arranged on the protection box. According to the storage device for blockchain data storage, the heat dissipation mechanism and the rotating mechanism are arranged, the rotating mechanism can drive a second rotating rod to rotate, and the heat dissipation mechanism can quickly dissipate heat of the storage device, so that the heat dissipation capability of the heat dissipation mechanism is improved, and the heat dissipation of the storage device can be effectively realized; therefore, the working stability of the storage device is enhanced, the service life of the storage device is prolonged, use by people is facilitated, the whole device is simple in structure and convenient to operate, and the applicability of the whole device is improved.

The invention discloses a filtration system. The filtration system is at least composed of a first booster pump, a first filter, a second booster pump, a second filter and a control unit which are connected in sequence; and the first filter is a double-column recoil type net replacing filter, the second filter is a melt automatic recoil type filter, and the control unit is connected with two pressure sensors located on the two sides of the first filter, pressure sensors located on the two sides of the second filter, the first booster pump, the first filter, the second booster pump and the second filter. The invention further discloses an operation technology of the filtration system. By means of the filtration system, automatic flushing of filtering nets of the second filter is achieved, when the differential pressure between a melt outlet and a melt inlet of the second filter is too large, the back washing process is automatically started, and the position and the movement distance ofa filter recoil shaft of the second filter are accurately controlled; and the line structural design is reasonable, the filtering pertinence of high-temperature melt is high, the filtering period islong, the filters are prevented from being frequently replaced, filtering is stable, and the filtering efficiency is high.

The invention discloses a processing technology for a non-sticky drying cylinder of a food-grade filter paper specific drying machine. The processing technology comprises the following steps of a) roughing a drying cylinder, b) coating a non-sticky coating layer, c) installing a high-temperature solidifying device, d) solidifying the non-sticky coating layer, e) water-cooling fixing the non-sticky coating layer and f) detaching the high-temperature solidifying device. The drying cylinder is roughened with figures processed on the outer wall of the drying cylinder via a knurling tool, so a filter paper peeling surface is also coarse; the filter paper can be prevented from being stuck to the drying cylinder with the non-sticky layer arranged on the drying cylinder; the drying cylinder can be directly processed and machined in the drying machine, so a drying cylinder detachment procedure can be saved; meanwhile, the non-sticky layer is directly solidified by the high-temperature solidifying device mounted on the drying machine, so the non-sticky layer can be more conveniently formed; compared with the prior art, the processed filter paper is roughed on double surfaces, so filter paper thickness is increased and fluffy; and product quality can be improved.

The invention relates to a mobile assembly type drop hammer impact test device and an installation method, and belongs to the technical field of impact resistance test. The device comprises a test bench, a drop hammer and a force sensor, the test bench is composed of a channel steel base, a guide rail, a supporting rod and a steel beam. The channel steel base is composed of four channel steels. The guide rail is vertically arranged on the channel steel base, convex connecting plates are arranged on the guide rail at intervals, and rectangular grooves are formed in the convex connecting plates;the steel beam is clamped between the guide rails and can slide up and down along grooves of the guide rails; one end of the supporting rod is inserted into the rectangular groove, and the other endis inserted into an inserting groove in a steel base plate laid on the ground; the drop hammer is fixed on the steel beam. The force sensor is fixed on the lower surface of the drop hammer. Compared with a traditional assembly type structure, many components of the device are easy to obtain on a construction site, on-site tests can be conducted in combination with on-site conditions, transportation cost is reduced, risks are reduced, economic benefits are improved, and convenience is brought.

The invention relates to a using method of a dismounting device special for vehicle transmission bearings. The dismounting device special for the vehicle transmission bearings is composed of a taper mandril, an M33 nut, a pull barrel, split type pull blocks and a pull block hoop; the dismounting device includes the using steps that the pull barrel is firstly aligned at a fixed shaft with the bearings needing to be dismounted; the end of the pull barrel is arranged at the end of the fixed shaft with the bearings needing to be dismounted in a sleeving manner; the corresponding semicircular split type pull blocks are selected according to the bearings in different specifications, the radial ends of the semicircular split type pull blocks are clamped into a bearing outer ring stopping groove, one ends are clamped into a pull barrel groove, and the two pull blocks are closed to form a round whole; then the mated pull block hoop is arranged on the semicircular split type pull blocks in a sleeving manner; the taper mandril is rotated clockwises, a taper tip of the taper mandril abuts against a center hole of the fixed shaft tightly; and finally, the taper mandril is rotated clockwises continuously, the pull barrel has axial displacement relative to the fixed shaft, the bearings arranged on the pull blocks in a sleeving manner axially move along with the pull barrel, and the aim of taking out of the bearings is achieved.

The invention provides a multifunctional material pushing frame for a construction site building. The multifunctional material pushing frame comprises support frames, connecting frames, connecting plates, a conveying belt, a motor and a switch. Two layers of support frames are arranged. The connecting frames are arranged at the upper ends of the support frames and are all further controlled by thesupport frames. The conveying belt is arranged on the inner sides of the connecting frames and is movably connected with the connecting frames. The connecting plates are arranged on the upper left and lower left of the front faces of the connecting frames, and the connecting plates and the connecting frames are welded tightly. Every three connecting frames form a set, and each connecting frame issupported independently by the corresponding support frame. Each connecting frame is supported independently by the corresponding support frame, thus when the pushing frame needs to be moved overall,the contact parts of the support frames and the connecting frames are separated, the support frames and the connecting frames are lifted correspondingly, so that when overall moving is needed, disassembly procedures are reduced, a fast moving effect is achieved, and the multifunctional material pushing frame is suitable for production and use of building equipment and has good development prospects.

The invention discloses a quick cutter replacing device based on a double-cam structure, and relates to the technical field of shield construction. The quick cutter replacing device comprises a cutter holder, a vertically-through cutter bin is arranged in the middle of the cutter holder, and rotatable inner rotating blocks are arranged in the middles of the front side and the rear side of the cutter bin; the inner rotating blocks are circular, clamping grooves are formed in the inner rotating blocks, and sliding grooves are arranged at the upper portions of the inner rotating blocks; the width sizes of the clamping grooves are equal to that of the sliding grooves, a pressing block is arranged below the inner rotating blocks and is fixedly connected with a cutter holder fixing bolt, and fixing holes are formed in the positions, corresponding to the fixing bolt, of the pressing block and the cutter holder; a hobbing cutter is arranged in the middle of the cutter bin, and cutter shafts at the front end and the rear end of the hobbing cutter are clamped in the clamping grooves. The quick cutter replacing device has the beneficial effects that the device is simple in structure and is convenient to operate, the disassembly and assembly procedures are reduced, and the operation efficiency is improved; the overall structure of the shield cutter holder is simplified, the cutter is convenient to disassemble and assemble, and the efficient cutter changing operation is achieved.