8results about How to "Reduce carryover" patented technology

The utility model provides a kind of floating object removing equipment for sewage treatment, including grating conveyor, one end of the grating conveyor is provided with bottom backing plate, the other end of the grating conveyor is equipped with two mutually symmetrical conveyor end plate, transmission roller is rotatably installed on the bottom backing plate, the grating belt of the grating conveyor is driven and wound on the surface of transmission roller, the both ends of the bottom backing plate are respectively fixedly connected with height-adjusting plate;The utility model can flexibly adjust the height and angle of the device according to actual demand by setting through the cooperation of height-adjusting plate and mounting guide rail plate, so as to adapt to different sewage treatment scenarios.In addition, the design of positioning screw further enhances the stability of the device, keeps accurate position control during the sliding process of the extension slide, avoids the deviation problem caused by vibration or external force, and improves the flexibility of the equipment.

The utility model discloses a dust absorbing and filtering device for engineering construction in an ecologically fragile area. The dust absorbing and filtering device comprises a first air curtain machine, a rear shielding block, a first side shielding block, a second side shielding block, a negative pressure dust collector and a second air curtain machine, in the application, the top air curtain generated by the first air curtain machine is matched with the rear shielding block, the first side shielding block, the second side shielding block and the negative pressure dust collector to form a closed space, and then engineering construction related parts are all arranged in the space to prevent dust from overflowing; besides, an inlet and an outlet are formed in a first side shielding block, and a side air curtain is formed through a second air curtain machine to cover the inlet and the outlet, so that dust can be reduced when constructors and equipment leave the field, and pollution to the environment of an ecologically fragile area is reduced.

This application provides a bead-stringing fixture for the immersion nickel-gold process of printed circuit boards, belonging to the field of PCB manufacturing technology. The fixture includes an upper comb-tooth insert plate, a first non-elastic high-strength fishing line, a lower comb-tooth insert plate, a second non-elastic high-strength fishing line, and a third non-elastic high-strength fishing line. The frameless design of this fixture increases production capacity and reduces chemical carryover, thus saving costs and improving production efficiency. The use of high-strength materials ensures stability and corrosion resistance, guaranteeing the fixture's stability and durability during long-term operation, reducing maintenance frequency, lowering production costs, and providing a stable and durable structure. The upper and lower comb-tooth insert plates offer maximum capacity improvement, increased efficiency, and cost savings for immersion nickel-gold processes and multi-piece operations on gantry lines, making it highly adaptable.

The utility model relates to the field of dry powder filling, in particular to a fire-fighting dry powder filling device which comprises a filling machine and a discharge pipe mounted on the outer side of the filling machine. The device further comprises a collecting assembly, and the collecting assembly is arranged on the outer side of the discharging pipe and used for collecting the dry powder in the discharging pipe after single-time filling in a centralized mode, so that the phenomena that the dry powder leaks and the follow-up filling amount is affected are reduced. Wherein the collecting assembly comprises a rotatable sealing cover, a collecting groove and a rubber ring, the collecting groove is formed in the sealing cover and faces a discharging end opening of the discharging pipe, the rubber ring is installed in the collecting groove, and a set of gaps distributed along the axis of the rubber ring are formed in the rubber ring; after single filling operation, dry powder remaining in the discharging pipe can be collected in a centralized mode, the leakage phenomenon of the dry powder is reduced, and the accuracy of the follow-up filling amount is guaranteed.

The utility model relates to the technical field of bread processing equipment, and discloses a stackable baking tray, which comprises a baking tray main body and an edge tray, an oil discharge groove is arranged at the edge position in the baking tray main body, a concave circular groove is arranged on the top surface of the edge tray, a positioning column is fixed at the bottom of the edge tray, and the positioning column is fixed at the bottom of the edge tray. The circular groove and the positioning column are located on the same vertical face, and the outer side wall of the baking tray body and the outer side wall of the edge tray are coated with Teflon coatings. The round grooves are formed in the top of the edge disc, the round grooves are circularly distributed into four groups, the positioning columns are fixed to the bottom face of the edge disc, the round grooves and the positioning columns are also circularly distributed into four groups, at the moment, the round grooves and the positioning columns are located on the same vertical face, and one positioning column falls into one round groove; and the four positioning columns fall into the circular grooves, so that the four positioning columns can be stacked upwards in sequence after being positioned, the purpose of facilitating stacking is achieved, the stability after stacking is improved, and therefore the stacking effect is well improved in the working process.

The utility model discloses a straw treatment device for edible mushroom cultivation, and belongs to the technical field of straw treatment. The sorting and conveying mechanism is mounted in the crushing box and comprises two groups of symmetrically mounted conveying belt assemblies; directional blocks which are matched with each other are arranged on the conveying surfaces of the two groups of conveying belt assemblies; the driving mechanism comprises a driving motor and a transmission system; the cutting mechanism is arranged at the downstream of the sorting and conveying mechanism and comprises a fixed cutter and a rotary cutter assembly matched with the fixed cutter; and the directional block and the speed difference of the two groups of conveying belt assemblies have a synergistic effect, so that the straws enter the cutting mechanism after being adjusted to be in a state that the axial direction is consistent with the conveying direction in the conveying process. According to the straw treatment device for edible mushroom cultivation, the two conveying belt assemblies operate at different linear speeds, the speed difference is formed, straw can be automatically adjusted to be in the state that the axial direction is consistent with the conveying direction and then enters the cutting mechanism, and the uniformity of the length of the cut straw is improved.

The utility model provides a steam heating bin pretreatment device suitable for semi-solid hazardous waste, which comprises a steam generator, a steam output pipe, a steam chamber, an SMP mixing bin and a steam loop pipe, one end of the steam output pipe is connected with the steam generator, the other end of the steam output pipe is connected with the steam chamber, the steam chamber is positioned between the inner wall of the SMP mixing bin and a stirring shaft of the SMP mixing bin, and the steam loop pipe is connected with the steam chamber. The steam output pipe is arranged in the steam chamber and is arranged on the inner wall of the SMP mixing bin, one end of the steam loop pipe is connected with the steam chamber, the other end of the steam loop pipe is connected with the steam generator, the steam output pipe electric control valve is arranged on the steam output pipe, and the loop pipe electric control valve is arranged on the steam loop pipe. According to the device, through combination of steam heating and mechanical stirring, the problem that the semi-solid hazardous waste cannot be stirred and mixed uniformly due to high-temperature melting or low-temperature solidification in the pretreatment stage can be effectively solved, so that efficient pretreatment of the semi-solid hazardous waste with high temperature sensitivity is achieved, and the fluidity and uniformity of the semi-solid hazardous waste are improved.

The application belongs to the technical field of metal processing fluid, and discloses a low-carbon biodegradable metal processing fluid, which comprises the following components in percentage by mass: 4-6% of isopropyl alcohol amine, 1-3% of nano silicon corrosion inhibitor, 2-5% of ternary carboxylic acid rust inhibitor, 0.5-2.5% of benzotriazole, 5-10% of 182 self-emulsifying ester, 4-6% of castor oil acid, 40-60% of DOTP, 4-8% of gelberol, 2-4% of ether carboxylic acid complexing agent, 2-5% of cashew phenol polyoxyethylene ether 5EO, 4-8% of cashew phenol polyoxyethylene ether 2EO, 0.4-0.6% of potassium hydroxide, and the balance of water. The low-carbon biodegradable metal processing fluid does not contain harmful substances, has excellent environmental protection performance, has good lubricity, and can be applied to the processing of metals such as copper, aluminum and its alloys, magnesium and its alloys, and has a good application prospect.