97results about How to "Small selection" patented technology

An electric drive axle comprises: a housing; a drive motor having an output shaft for outputting torque; a main reducer configured to perform two-stage reduction to amplify the torque outputted from the output shaft; a differential including a differential housing, a planetary gear shaft, a left and right drive shafts rotating about an axis of rotation; a torque vectoring motor; a double row planetary gear reduction mechanism configured to amplify power outputted from the torque vectoring motor; a double row planetary gear torque vectoring mechanism connected to the double row planetary gear reduction mechanism and configure to receive torque outputted from the double row planetary gear reduction mechanism and output reverse torque in contrast to the torque received; and a single row double planetary gear coupling mechanism providing opposite direction torques to the left and right drive shafts respectively.

The invention relates to a regeneration method for hydrochloric acid waste liquid. According to the method, a spray roasting process is adopted, and at least part of the hydrochloric acid waste liquid entering a Venturi preconcentrator is preheated hydrochloric acid waste liquid. The invention further relates to a regeneration system for the hydrochloric acid waste liquid. The regeneration system for the hydrochloric acid waste liquid comprises a roasting furnace, the Venturi preconcentrator, an absorption tower and at least one stage of washing mechanism which are sequentially connected through flue gas pipelines. At least one of the flue gas pipelines is provided with a heat exchange mechanism. The hydrochloric acid waste liquid enters the heat exchange mechanisms to serve as a refrigerant for heat exchange with flue gas, and refrigerant outlets of the heat exchange mechanisms are all connected with the Venturi preconcentrator. By preheating the hydrochloric acid waste liquid, the heat needed for heating concentration of the hydrochloric acid waste liquid in the Venturi preconcentrator is reduced, and thus more hydrochloric acid waste liquid can be heated by the same quantity of roasting flue gas in the Venturi preconcentrator, the processing efficiency of the Venturi preconcentrator is effectively improved, and meanwhile the energy consumption of the roasting furnace can be reduced.

The invention relates to a PM2.5 (Particulate Matter 2.5) detection device and a manufacturing method of the PM2.5 detection device. The PM2.5 detection device comprises a particle separation mechanism for filtering and removing particles with the size more than 2.5 microns in needed quantitative air and a PM2.5 detection mechanism for carrying out detection on the content of PM2.5 in the quantitative air, wherein an outlet end of the particle separation mechanism is connected with an inlet end of the PM2.5 detection mechanism; the PM2.5 detection mechanism comprises a detection cavity; a detection light source and a light detector are arranged on the outer side of the detection cavity; light emitted by the detection light source enters the detection cavity through a light incidence window on the detection cavity; the light detector is used for receiving emergent light absorbed and scattered by PM2.5 particles of the detection cavity by a light emergent window on the detection cavity; the light detector is used for determining and outputting the concentration value of the PM2.5 according to the strength of the emergent light. The PM2.5 detection device is compatible with a conventional MEMS (Micro-electromechanical Systems) process; the process is simple and convenient, the precision and the effectiveness of the PM2.5 detection can be improved, and a miniaturized structure enables the PM2.5 detection device to have the characteristics of portability and real-time detection; the PM2.5 detection device is wide in applicable range and is safe and reliable.

The invention relates to a hydrochloric acid waste liquid regenerating method. The method adopts a spray roasting method, and comprises the following steps that part of waste heat of circulating liquid in a first-stage washing mechanism is recycled to be used for preheating at least one part of hydrochloric acid waste liquid entering a venturi preconcentrator. The invention further relates to a hydrochloric acid waste liquid regenerating system. The hydrochloric acid waste liquid regenerating system comprises a roasting furnace, the venturi preconcentrator, an absorption tower and one or more stage washing mechanisms, which are sequentially connected through a flue gas pipeline; a heat exchanging mechanism is arranged on a circulating liquid pipeline of the first-stage washing mechanism; a refrigerant inlet of the heat exchanging mechanism is connected with a hydrochloric acid waste liquid storing tank; a refrigerant outlet is connected with the venturi preconcentrator. The hydrochloric acid waste liquid is preheated by the circulating liquid in the first-stage washing mechanism, so that the energy is saved, the consumption is reduced, and the efficiency of regenerating and recycling hydrochloric acid can be improved; besides, the circulating liquid in the first-stage washing mechanism is cooled, and the heat exchanging capacity between the low-temperature circulating liquid and flue gas is large, so that the washing effect of the first-stage washing mechanism and the absorbing effect of the absorption tower can be improved.

The invention provides a transmission dual-H control mechanism with obvious hand feel of high-low gear shifting. The transmission dual-H control mechanism comprises a control shell, a transverse shift lever, a shift head and a gear selecting hand feel control block, wherein the transverse shift lever, the shift head and the gear selecting hand feel control block are arranged in the control shell. One end of the transverse shift lever is a gear shifting input end, and the other end of the transverse shift lever is connected with a high-low gear shifting and return balancing device. The shift head is fixed to the transverse shift lever, and a gear selecting lever and a dual-H valve are arranged on the positions, corresponding to the matching position of the shift head, of the control shell respectively. The gear selecting hand feel control block is fixed to the transverse shift lever, and the control shell is provided with the hand feel pin matched with the surface of the gear selecting hand feel control block. The hand feel pin is connected to the control shell through a spring. The contact face of the gear selecting hand feel control block and the hand feel pin is provided with working surfaces corresponding to gear selecting operation in sequence, the working surfaces corresponding to selecting from low gears to a rear gear are inclined planes extending outwards in the axial direction, and the working surfaces corresponding to selecting from high gears or a neutral gear to high gears are provided with outward protrusions. When the hand feel pin makes contact with the inclined planes or the protrusions, the spring is compressed.

The invention relates to the technical field of desulfurization in high-pollution industries such as electric power, metallurgy, coking and cement, and particularly provides a dry desulfurization reaction device which comprises a first channel and a second channel which are adjacently arranged in parallel, wherein the starting end of the first channel is a flue gas inlet, the tail end of the firstchannel is communicated with the starting end of the second channel, and the tail end of the second channel is a flue gas outlet; a first adsorbent injection port is formed in a position, close to the starting end of the first channel, of the first channel, and an adsorbent injected from the first adsorbent injection port is an adsorbent for flue gas desulfurization. The dry desulfurization reaction device at least solves the problems of large volume, high pressure in the tower, low applicability and the like of the traditional desulfurization device at present.

A transport unit is provided for cylindrical cargo items supported on a support surface and arranged in parallel in at least two layers. The center axes of cargo items are arranged on top of one another and extend essentially in the same vertical plane. At least one tension device extends between two layers. The tension device extends from an outside edge of a cargo item to an outside edge of an opposing cargo item in the layer. At least two stop elements are positioned on respective ends of the tension device. The stop elements are formed for engaging the cargo items and at least one of the stop elements being adjustably positionable on one end of the tension device. The stop elements being connectable by the tension device in a force transferring manner relative to the cargo items.

A flexible start speed adjusting device capable of realizing belt-type conveyor on-load power isolation overcomes the defects that in an existing belt-type conveyor multi-motor driving system, the working condition of non-load operation or light-load operation often occurs, and energy is wasted. The flexible start speed adjusting device is characterized in that brake mounting holes are machined in one side, provided with a pump wheel axle, of a box body, an electro-magnetic brake is installed through a brake bearing seat, and a driven gear which is matched with a driving gear is installed on a brake shaft of the electro-magnetic brake. The flexible start speed adjusting device has the advantages that the multi-motor driven belt-type conveyor on-load power isolation function is realized, the purpose of saving energy is achieved, the type selection range of the electro-magnetic brake is small, the technology realizing difficulty is low, an electromagnetic brake body is low in manufacturing cost, the purposes that torque impact of equipment during the motor power isolation process or the motor power reapplication process is reduced, and when a certain motor in the driving system of the bet-type conveyor fails, the motor can be turned off under the condition that loads allow and the normal work and operation of the belt-type conveyor are not influenced are realized, and the continuous operation capacity of the conveyor is improved.

Data is written to a nonvolatile memory device having a memory region of four bits or larger in one memory cell sandwiched by a source and a drain with an improved accuracy. The nonvolatile memory device 100 includes four control gates 114 to 117 provided between a first and a second impurity-diffused regions 106a and 160b that are provided separately from the semiconductor substrate, and a memory cell including memory regions 106a to 106d that are counterpart of the control gates. A method for controlling the nonvolatile memory device 100 includes classifying the four control gates 114 to 100 into two groups of right and left sides, and then, applying a lower voltage to an impurity-diffused region that is further from a target memory region for injecting an electron and applying a higher voltage to an impurity-diffused region that is closer the target memory region, and moreover applying a higher voltage, the higher voltage being higher than voltages applied to other control gates.

By providing a gate dielectric material of increased thickness for P-channel transistors compared to N-channel transistors, degradation mechanisms, such as negative bias threshold voltage instability, hot carrier injection and the like, may be reduced. Due to the enhanced reliability of the P-channel transistors, overall production yield for a specified quality category may be increased, due to the possibility of selecting narrower guard bands for the semiconductor device under consideration.

The invention provides a method for synthesizing penicillin G sulfoxide by using a continuous flow reactor, and the method comprises the following steps: (1) providing the continuous flow reactor which comprises a peroxidation reaction system and an oxidation reaction system; (2) respectively putting hydrogen peroxide and glacial acetic acid into a first containing bottle and a second containing bottle in the peroxidation reaction system, and enabling the hydrogen peroxide to be in contact with the glacial acetic acid so as to obtain peracetic acid; and (3) enabling the peracetic acid to enterthe oxidation reaction system through a pre-cooling module, and contacting the peracetic acid with a penicillin G potassium salt aqueous solution so as to obtain the penicillin G sulfoxide and a penicillin G sulfoxide aqueous solution. The method can be used for effectively synthesizing the penicillin G sulfoxide, and in the whole process of the method, reaction materials are easy to obtain, treatment after reaction is simple, industrial three wastes are easy to treat, the yield of a target product is high, and the method is very suitable for industrial production.

The invention discloses an adjustable die for transformer coil winding. The adjustable die comprises a die body, and is characterized in that the die body comprises a winding sleeve composed of at least four die sections, and the inner side of each die section is connected with a hollow die shaft through a hinge; a die center shaft penetrates through the hollow die shaft; the die center shaft is composed of a middle section, a threaded section and a cube section, the threaded section and the cube section are arranged on the two sides of the die center shaft, the middle section is matched with the hollow die shaft, the cube section penetrates through the center of a second spoke disc, the threaded section penetrates through the center of a first spoke disc, the threaded section is sleeved with a shaft sleeve, and the shaft sleeve is in threaded connection with the threaded section; the shaft sleeve is provided with a limiting structure, the shaft sleeve end on one side of the limiting structure penetrates through the first spoke disc, and the first spoke disc is limited at the limiting structure. The adjustable die is high in universality, the variable diameter of the die body can be suitable for manufacturing of different types of coils, production cost is greatly reduced, and production efficiency is improved.

The invention discloses an open separation system. The open separation system comprises a separation machine and is characterized in that the lower end of the separation machine is communicated with a cinder bin, the upper end of the separation machine is communicated with a bag collector through an ash conveying pipe, the lower end of the bag collector is communicated with a fine ash bin, the separation machine is further communicated with a main fan through the ash conveying pipe and an ash-gas mixer, and the ash-gas mixer is communicated with a raw material bin through a discharging machine. The open separation system is mainly used for a coal ash separation system.

A slime water condensation flotation process mainly includes the following steps: S1, one portion of floating pulp flows by gravity into a thickener, the other portion of the floating pulp flows by gravity into a slurry mixing device, and the proportion of the two parts is flexibly adjusted; S2, the floating pulp is completely clarified by quantificationally adding a flocculating agent to the thickener through a flocculating agent-adding device, and overflows are directly used as circulating water; S3, the pulp with the high concentration about 400g / L is sent into the slurry mixing device through an underflow pump and the pulp in the high concentration about 400g / L and the pulp with the low concentration about 40g / L in the slurry mixing device are intensely stirred by a blade wheel to be uniform to prepare the floating pulp with the concentration of 80-150 g / L; S4, the prepared pulp flows by gravity into a pulp preprocessor and flows by gravity into a flotation machine after the pre-mineralization is performed. In addition, a dispersant is quantificationally added into the slurry mixing device through a dispersant-adding device to eliminate the unfavorable influence of the flocculating agent on subsequent floatation links. The investment cost of a supplementary floatation system is reduced and the production cost of the consumption of floatation medicaments and the like is alsoreduced, and the stability of the slime floatation process index is guaranteed at the same time.

Data is written to a nonvolatile memory device having a memory region of four bits or larger in one memory cell sandwiched by a source and a drain with an improved accuracy. The nonvolatile memory device includes four control gates provided between a first and a second impurity-diffused regions that are provided separately from the semiconductor substrate, and a memory cell including memory regions that are counterpart of the control gates. A method for controlling the nonvolatile memory device includes classifying the four control gates into two groups of right and left sides, and then, applying a lower voltage to an impurity-diffused region that is further from a target memory region for injecting an electron and applying a higher voltage to an impurity-diffused region that is closer the target memory region, and applying a higher voltage, the higher voltage being higher than voltages applied to other control gates.