34results about How to "Work environment hygiene" patented technology

The invention discloses a method for extracting lincomycin lincomycin by using resin to adsorb a fermentation stock solution. The method comprises the following steps: (1), placing a fermentation solution in a pretreatment tank, adding a sodium hydroxide solution whiling stirring, heating, adding resin and stirring slowly to obtain filtered resin; (2) placing the filtered resin into alkaline water with the same volume, and adding deionized water to clean the resin; (3), placing the cleaned resin in a chromatographic column and eluting the resin with n-butyl alcohol; (4), taking lincomycin desorbed solution and adding activated carbon for decolorizing; (5) desalinating the decolorized liquid through a desalinating column to obtain lincomycin desalinating liquid; (6), concentrating; (7) drying to obtain the finished product of hydrochloric acid lincomycin. The method provided by the invention avoids the procedures of plate-frame pressure filtration or ceramic membrane filtration, solvent extraction, back extraction and the like in the traditional process, and has the advantages of being simple in operation, low in labor intensity, clean in working environment, simplified in process, small in occupied area, low in cost and small in environmental pollution; the total recovery is greater than 85%, and the purity of the finished product is greater than 98%.

This invention involves a process for preparing a defeathering wax for domesticated poultry. Raw materials for this defeathering wax are: 10-90 wt. % of wax, 1-30 wt. % of viscosity increaser, 1-70 wt. % plasticizer and 0-5 wt. % of disperser. The process for preparing the defeathering wax comprises the steps of: melting the wax and then adding the viscosity increaser, the plasticizer and the disperser in it; raising the temperature to 110-160 deg.C and stirring the said mixture with a rotational speed of 5-10 rpm; raising the rational speed to 30-60 rpm after complete melting of the mixture, and stirring it for another 30-60 min; releasing the material and moulding. Compared with the present processes, this invention has such advantages as nontoxic, nonodorous, safe and thermally stable.

The present invention relates to the field of grinding machines, specifically a fully automatic surface grinder, comprising a bed body, the upper surface of the bed body is fixedly installed with a movable plate through a first sliding mechanism, and the upper surface of the bed body is fixedly installed near the middle There is a first screw group body, the first screw group body is fixedly connected to the upper surface of the movable plate, a working box is fixedly installed on the upper surface of the movable plate near the middle, and a placement mechanism is fixedly installed in the working box, so A filter box is fixedly installed on the rear side of the bed, and the filter box communicates with the working box through a conduit. The invention can recycle and filter the cooling liquid through the cooperation of the conduit and the filter box, and make it recycled through the conveying mechanism and the spraying mechanism, and then collect and filter the smoke and dust through the dust cover and the suction mechanism, so that the discharged gas is more efficient. Environmental protection, reducing the forward and backward movement of the placement mechanism, weakening the vibration of the placement mechanism and the workpiece on the upper surface, and making the fixing more firm.

The invention discloses a device for automatic piston phosphatization. The device comprises a main frame, wherein two manipulators are arranged at the top of the main frame and can move back and forth along the main frame; a plurality of phosphatization process tank groups are arranged at the bottom of the main frame according to the technical process; the manipulators are matched with rotary hanging racks which can move among the phosphatization process tank groups; a filter press and a phosphatizing tank XI are arranged on the outer side of the main frame; the phosphatizing tank XI, the filter press and a phosphatizing tank VIII in the main frame are connected to form a circulating filtration mechanism for filtering a phosphatizing solution. The main body is frame-shaped; the device is simple in structure, convenient to mount, debug and protect and the working environment is safe and sanitary. The device adopts an automatic production manner to greatly improve the production efficiency and reduce the labor intensity of workers. The filter mechanism is used to filter the phosphatizing solution in order to implement recycling on the phosphatizing solution, and further reduce the use cost.

The invention relates to the technical field of medicinal material processing and discloses a method for processing dendrobium. The method comprises the steps of classifying and washing the fresh dendrobium, drying the dendrobium in the air for standby application; cutting the clean fresh dendrobium into sections with lengths in a range of 6-10cm, spraying hot water for 3-5min with the water temperature in a range of 70-80 DEG C, and then placing the sections into a dryer for drying; placing the dried dendrobium into a mechanical skin bumping machine to remove tunica vaginalis, then washing the dendrobium, and drying the dendrobium through the drier; softening the dendrobium with the tunica vaginalis removed with pure water or ethanol water with the mass fraction of 75%, then cutting the dendrobium into 2-3mm thick sheets or 1.5-2.0cm long sections through a traditional Chinese medicine slicing machine; placing the dendrobium which are already cut into the sheets or the sections into the drier for drying, selecting the qualified dendrobium to be sterilized, and packaging the dendrobium in a graded mode. The method for processing the dendrobium is simple to operate, high in work efficiency and capable of improving the utilization ratio of the dendrobium greatly and improving the stability, the safety and the moisture resistance of the dendrobium.

The application is a divisional application of an application of which the application number is 201710714914.8. The application discloses a water washing and cover sealing device applied to edible mushroom culturing. The water washing and cover sealing device applied to edible mushroom culturing comprises a sealing hood, a spray rinsing assembly and an excretion assembly, wherein a bottle cap which is adapted to an opening of an edible mushroom culture bottle can be placed in the sealing hood, and is used for sealing connection with the edible mushroom culture bottle; the spray rinsing assembly comprises water spray pipes; water spray holes are formed in the upper end of each water spray pipe, and are sloping holes; the excretion assembly comprises excretion pipes and a recovering pipe; draining holes are formed in the upper end of each excretion pipe; the upper ends of the water spray pipes and the excretion pipes can penetrate through the sealing hood and the bottle cap to extend into the inner part of the edible mushroom culture bottle; and the recovering pipe is connected with the lower ends of the excretion pipes. According to the water washing and cover sealing device applied to edible mushroom culturing disclosed by the application, the inner part of the edible mushroom culture bottle is effected by the spray rinsing assembly and the excretion assembly, so that water washing and drainage can be performed at the same time, the problem that the bottle cap is pressed by too much accumulated water is solved, the situations that the bottle cap is deviated, and water is sprayed onto the equipment and the ground are avoided, and a clean and hygienic working environment where bacteria are not liable to breed is constructed.

The invention discloses an automatic mushroom-scratching-and-washing-integrated production line. The automatic mushroom-scratching-and-washing-integrated production line comprises an extending rail, a loading conveying device, a mushroom scratching device and a water washing and covering device. The loading conveying device is arranged on the extending rail, is used for loading edible mushroom culturing bottles, can advance in the extending direction of the extending rail and can conduct overturning motion to enable the edible mushroom culturing bottles to be overturned into the bottle-opening-downward state from the bottle-opening-upward state. The mushroom scratching device is arranged below the extending rail and can ascend and extend into bottle openings of the edible mushroom culturing bottles for mushroom scratching motion. The water washing and covering device is arranged below the extending rail, can ascend, can be matched with the bottle openings of the edible mushroom culturing bottles and then can conduct covering, water washing and water discharging motions on the edible mushroom culturing bottles. According to the automatic mushroom-scratching-and-washing-integrated production line, working efficiency is greatly improved, it is avoided that water is sprayed to processing equipment and ground, the clean and sanitary working environment is created, growth of edible mushrooms is facilitated, the body health of workers is also facilitated, and meanwhile waste of water resources can be greatly reduced.

The invention relates to a boiler control device, in particular to an electricity-coal boiler control box for a train and a control method. The electric-coal boiler control box is mainly composed of an in-train temperature sensor arranged in a compartment, a boiler water temperature sensor stretching into the a boiler wall, a liquid level sensor, a PLC, a plurality of electric heating pipes, two circulating water pumps, current sensors, indicating lamps and a power source circuit. The electric-coal boiler control box and the control method have the advantages that an electric heating pipe switch knob and a water pump control switch can be manually controlled according to needs, the number of the adopted electric heating pipes and the circulating water pumps is selected, the temperature in the compartment is controlled to be stable and comfortable, the current sensors and the indicating lamps displaying the work state of the electric heating pipes and the circulating water pumps are arranged on the electric heating pipes and the circulating water pumps respectively, a system can be maintained and repaired conveniently, the workload of train crew members is relieved to a large degree, and a comfortable and sanitary travel and work environment is provided for passengers and the crew members.

The invention relates to a pre-embedded bushing picking and grinding device, which includes: a manipulator, a pneumatic cutter device, a polishing mechanism, a purging and static removal mechanism, and an inner diameter detection device. Shearing, grinding, chip blowing and ID inspection operations. When the pre-buried casing picking and grinding device is used for processing the embedded casing, it saves time and effort, has high work efficiency, can prevent debris from splashing, cleans debris thoroughly, and maintains a hygienic working environment. Measure in one.

The invention discloses an ammonia-nitrogen wastewater resourceful treatment system and a treatment method of the ammonia-nitrogen wastewater resourceful treatment system. The ammonia-nitrogen wastewater resourceful treatment system comprises a water collection tank, a buffering tank, an adjusting kettle, a first buffering tank, an MVR evaporation system, an adjusting tank, an adsorption system, a second buffering tank and an ammonia-nitrogen removing system, which are connected in sequence, wherein each of the water collection tank, the buffering tank, the adjusting kettle, the first buffering tank, the MVR evaporation system, the adjusting tank, the adsorption system, the second buffering tank and the ammonia-nitrogen removing system is provided with an inlet and an outlet. The ammonia-nitrogen wastewater resourceful treatment system has the advantages of concise pre-treatment device, small occupied area, convenience for operation, sanitary working environment, good purification effect, no secondary pollution and small solid waste output, and can be used for efficiently recycling ammonia-nitrogen resources in wastewater in an ammonium salt form; output water of the system can be reused as reclaimed water.

The invention discloses a circulation air cooker, comprising a cooker cabinet, a fan for providing airflow power and an airflow filtering device, wherein the cooker cabinet is composed of a hearth for the placement of stoves and a hood provided with an air suction port; the hood is connected with the air suction port of the fan through an air inlet duct, the airflow filtering device comprises a primary filtering device which is arranged inside the air inlet duct; the airflow filtering device further comprises a wet filtering device for performing secondary filtering on the airflow which is filtered by the primary filtering device, and the airflow carrying cooking fume is subjected to primary filtering and wet filtering and then delivered to an air exhausting port through an air returning duct to be directly exhausted out of the cooker and to working environment or outdoor atmosphere. The circulation air cooker can recycle the airflow so as to avoid environmental pollution caused by exhausting the cooking fume outside, can be used in the place at which an external air exhausting duct cannot be mounted, and can effectively prevent the cooking fume of the hearth from diffusing towards the space out of the hearth, leading to more sanitary working environment.