37results about How to "Not adulterated" patented technology

The invention provides an unpacking device and an unpacking feeding system, and relates to the technical field of unpacking and discharging. The unpacking device and the unpacking feeding system aim to solve the technical problem that an existing unpacking device needs to open bags by means of external driving components. The unpacking device comprises a sliding seat and a cutter assembly, whereinan inclined surface inclined relative to a horizontal plane is arranged on the upper surface of the sliding seat; the cutter assembly comprises blades; and the blades protrude from one side of the inclined surface and are used for scratching bags falling along the inclined surface. The unpacking feeding system comprises a conveying device, the unpacking device, a feeding dust removing device andan empty bag recycling device. The unpacking device and the unpacking feeding system are used for unpacking woven bags, kraft paper bags, composite bags and the like.

A detection method of residue a nitrogen-containing pesticide based on infrared photoacoustic spectroscopy is as follows: (1). collecting infrared photoacoustic spectroscopy data of a sample, to be more specific, using an infrared photoacoustic spectroscopy instrument, selecting appropriate parameters such as moving mirror speed and scanning times, and collecting the infrared photoacoustic spectral data of the sample; (2). performing pre-processing including wavelet analysis for smoothing and noise reduction, data normalization, and the like on the infrared photoacoustic spectral data obtainedin the step (1) to obtain an infrared photoacoustic spectral curve of the sample to be tested; (3). performing analysis including characteristic peak position identification and principal componentanalysis on the spectrogram obtained in the step (2); and (4). analyzing results, to be more specific, by combining the molecular structure of a pesticide, analyzing the spectrogram obtained in the step (3), and determining the position of an infrared absorption peak of a specific functional group in the molecular structure of the pesticide to be tested; and comparing the sample and contrasting that whether an infrared absorption peak occurs at the position, finally determining the type of the pesticide residue. The method can realize rapid, non-destructive and in-situ detection of agricultural products, and can be quickly developed into rapid on-site detection.

The invention relates to the technical field of packaging equipment, in particular to automatic packaging mechanical equipment. The automatic packaging mechanical equipment comprises a feeding devicefor conveying raw materials, a metering and distributing device and a packing device, wherein the feeding device comprises a rack and a conveyor belt; a first motor is arranged on the rack; a first belt is connected on the first motor; a plurality of bottom shells for containing raw materials are arranged on the conveyor belt; the conveyor belt is arranged at the upper end of the frame; the metering distributing device is equipped with an input end and an output end which is automatically opened under certain pressure; each of the input end and the output end is equipped with a conveying channel; the upper end area of the input end and the output end is greater than the lower end area of the input end and the output end; and the packing device comprises a base and rectangular support. According to the automatic packaging mechanical equipment disclosed by the invention, the feeding device, the metering and distributing device and the packing device are integrated, and the metering and distributing device, the feeding device and the packing device adopt a fully-automatic mode, so that automatic packaging is realized, labor intensity of a worker can be reduced while time is shortened,and production cost and labor are reduced.

The invention relates to energy saving and emission reduction, in particular to a two-stroke gasoline engine for arranging a pressure crankshaft for valve control over pre-burning scavenging gas in a scavenging channel. The two-stroke gasoline engine is characterized in that a valve device synchronous with the crankshaft is arranged, a C-shaped ring (56a) of a crankshaft valve (56) is arranged on the crankshaft (57), and pressure rings (56f) with oblique angles are arranged on the two side edges of a small segment of opening of the C-shaped ring of the crankshaft valve (56); when the side edges of logarithmic spirals, of the two side edges of the small segment of opening, of the pressure rings rotate along with the crankshaft, the effect that the logarithmic spirals with equal pressure corners affect the airflow and the buffering effect are achieved when an opening communicated with a crankshaft tank of the scavenging channel of an air cylinder is opened and closed; and a gap (56 delta) between the outer diameter of an outer circle of each pressure ring and the opening communicated with the crankshaft tank of the scavenging channel of the air cylinder of an engine 1E38F ranges from 0.02 millimeter to 0.08 millimeter, an thus the two-stroke gasoline engine for arranging the pressure crankshaft for valve control over the pre-burning scavenging gas in the scavenging channel is formed.

The invention relates to a sand separating and washing all-in-one machine. The machine comprises a vibrating screen box and a filtering assembly arranged in the vibrating screen box, wherein an upperfiltering piece and a lower filtering piece of the filtering assembly are each provided with a water outlet pipe, a water outlet pipe is arranged at a discharging port of the lower filtering piece, the upper filtering piece is provided with two or three water outlet pipes, and the upper and lower water outlet pipes are connected with a main water pipe through valves. According to the machine, 85%of fine particle materials in the total discharge amount can be recovered to the maximum extent, the device has incomparable technical and economic advantages compared with other equipment, fine particles are fully recovered, the problem of resource waste is solved, the workload of a sedimentation tank is reduced, the cleaning cost of the sedimentation tank is reduced, the fine material stacking time is shortened, and therefore the materials can be directly transferred and supplied to the market.

The invention provides a concrete surface brick forming device capable of achieving rapid mold replacement. The concrete surface brick forming device comprises a forming machine main machine, a brickconveying machine and a surface machine, wherein the brick conveying machine is fixedly arranged at the discharging end of the forming machine main machine and used for conveying formed concrete surface bricks, and the surface machine is movably arranged at the discharging end of the forming machine main machine and used for distributing surfaces into a mold frame of the forming machine main machine. The brick conveying machine is located below a surface supporting plate of the surface machine. The surface machine comprises a jacking receding mechanism which is fixedly arranged below the surface supporting plate and used for driving the surface supporting plate to ascend and descend. Mold moving mechanisms used for conveying molds from the interior of the forming machine main machine to the exterior or conveying the molds from the exterior to the interior of the forming machine main machine are arranged on the two sides of the brick conveying machine. The concrete surface brick formingdevice has the beneficial effects that the concrete surface bricks can be rapidly conveyed out, and the production efficiency is improved; the situation that the concrete surface bricks are scratcheddue to touch in the conveying process can be avoided, the quality of the concrete surface bricks can be better guaranteed, and the yield is increased; and meanwhile, rapid mold replacement is facilitated, and time and labor are saved.

The invention discloses a screening device for selenium-rich rice. The screening device for the selenium-rich rice structurally comprises a screening device body, a particle sieve device, an integrated sieve frame and a bottom sieve device, wherein the screening device body is mounted on the integrated sieve frame, and the screening device body is connected with the particle sieve device in an assembling mode. According to the screening device for the selenium-rich rice, left-right end distribution type screening and shaking of large-particle rice and small-particle rice are carried out at a top sieve plate during screening of the rice, large particles are processed and screened at the particle sieve device, small particles and impurities are screened on an undersize sieve device, and finally the impurities are divided into two parts and are screened and separated at an inner structure dust collector and the bottom sieve device correspondingly; and large-particle-shaking feeding type screening can effectively realize fine processing of the complete large particles, fine processing of the small particles and separation and screening of the impurities are separately achieved, so thatthe effective separation of the impurities such as empty shells, crushed straws, sandy soil, rice froth and grass seeds is achieved in a targeted manner, later processing and utilization of the impurities are facilitated, the screened rice is not doped with the impurities, and high-quality fine processing of the rice is realized.

The invention discloses an air filter of oil filtering machine. The air filter comprises a tank body, an upper cover, a base, and a pipeline joint. The upper cover is arranged on the top of the tank body and is matched with the tank body. The base is arranged in the bottom of the tank body and is matched with the tank body. An inner joint is arranged on the base and is connected with the pipeline joint. The joint between the inner joint and the pipeline joint is provided with a steel ball valve, the inner surface of the tank body is made of a silica gel material; a rubber mat is arranged between the base and the tank body, and a synthesized fiber net is arranged on the upper part of the rubber mat. All parts of air filter are tightly combined together, no other impurity is doped, the filtering is effective, and silica gel and rubber mat are arranged in the air filter to effectively prevent cavitation and reduce air noise.

The hydraulic system comprises a hydraulic control system, the hydraulic control system comprises a multi-way valve set, an oil tank, an oil pump, a lifting hook limiting valve set, an overload protection valve set and a winch control module, the oil tank is connected with one end of the oil pump, and the other end of the oil pump is connected with the oil inlet end of the multi-way valve set; the oil outlet end of the multi-way valve group is connected with the oil tank; the lifting hook limiting valve group is connected with a control end of the multi-way valve group; an overload protection valve group is arranged on the lifting hook limiting valve group; according to the structure, the problem that the structure of the telescopic arm is damaged due to the fact that the double-telescopic crane stretches out too long is solved while the double-telescopic crane keeps stretching out, and it can be guaranteed that the double-telescopic crane does not exceed the upper lifting limit during lifting.

The invention relates to an electroplating pearl nickel color difference optimizing process. A plating part subject to semi-bright nickel plating treatment is fed into a dedicated pearl nickel grooveto be subject to pearl nickel plating treatment, the dedicated pearl nickel groove comprises a groove body, multiple tetrafluorohydrazine pipelines which are distributed at equal intervals from top tobottom and extend in the width direction of the groove body are arranged at the two ends of the groove body, and a partition board for separating the tetrafluorohydrazine pipelines from an inner cavity of the groove body is arranged on the inner sides of the tetrafluorohydrazine pipelines, and pearl nickel plating is carried out in the following component solution and condition that 460 to 470 g/L of nickel sulfate, 43 to 47 g/L of nickel chloride, 43 to 47 g/L of boric acid, 16 to 24 ml/L of a softening agent BSI, 0.8 to 1.6 ml/L of a wetting agent Ma-80, 2.4 TO 3.2 ml/L of a pearl nickel sand agent and 1.0 to 2.0 ml/L of a stabilizing agent PVA-124 are included; in the whole electroplating process, all components in the solution need to be regularly added, and stability of concentrationof all components in the whole electroplating process can be ensured. The electroplating pearl nickel color difference optimizing process has the beneficial effects that through the optimized process, surface color consistency of products to be plated is ensured, and the product yield is improved.