30results about How to "Concentration can be adjusted" patented technology

The invention belongs to the field of chitosan, in particular a process for preparing microcapsule by cross bonding vanillic aldehyde (microcapsule) and chitosan, and the use of the chitosan microcapsule in protein, polypeptide macromolecular medicament and common medicament colon targeting medicine administration, the microcapsule is prepared from vanillic aldehyde cross bonding chitosan.

The production process of the polyaniline electrically conductive ink is composed of a process for obtaining a polyaniline colloid by polymerization of aniline in an aqueous medium at least in the presence of an anionic surfactant, a process for separating into two layers by adding at least one organic solvent to the reaction solution after the polymerization to migrate the polyaniline colloid to the organic layer, and a process for removing the aqueous layer.

The invention relates to high-performance bulk aramid nanofiber aerogel as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) nanosizing Kevlar macroscopic fibers to prepare an aramid nanofiber colloidal dispersion liquid; (2) preparing bulk aramid nanofiber hydrogel by a solvent exchange phase transition method; and (3) preparing the bulk aramid nanofiber aerogel by adopting supercritical CO2, normal pressure and other drying processes. The preparation method of the Kevlar aerogel, provided by the invention, is simple in process, is easy to realize continuous and large-scale production, and can be used for preparing the nanofiber aerogel with adjustable density and mechanical properties; the high-performance Kevlar aerogel provided by the invention has a relatively high specific surface area, controllable density, controllable porosity, low thermal conductivity and high temperature resistance.

The present invention provides an ozone-based deodorization and sterilization device and an odorless garbage room with the ozone-based deodorization and sterilization device. An ozone water generationdevice comprises a box body, a bottom part of one side of the box body is provided with a water inlet, a water inlet valve is arranged in the water inlet, the bottom part of the other side of the boxbody is provided with a water outlet, a first water outlet electric valve is arranged in the water outlet, one or more horizontally arranged partition plates are arranged in the box body, the partition plates divide an interior of the box body into a curved flow channel, a bottom end of the curved flow channel respectively communicates with the water inlet and the water outlet, the partition plates are of hollow structures, the hollow structure of each partition plate is used for communicating with an ozone generator, air holes communicating with the hollow structures are formed in the partition plates, and a water level sensor is arranged at a top part of an inner side of the box body. The ozone-based deodorization and sterilization device can effectively increase contact frequency and contact area of ozone and water, effectively increases the concentration of ozone dissolved in the water and can quickly reach a required sterilization concentration.

The invention discloses a method for adding coal water slurry into thick black liquor for mixed combustion in an alkali recovery furnace. The method comprises the following steps: fully mixing the coal water slurry with the thick black liquor, and sending a mixture into the alkali recovery furnace for combustion. By mixing coal water slurry (60-75%) with different concentrations in the thick blackliquor, the concentration of the black liquor can be adjusted, the combustion amount of the alkaline furnace can be increased, the problem that the concentration of the thick black liquor is low or the supply amount of the black liquor in the alkaline furnace is insufficient is solved in production, and a new process for stable combustion of the alkaline furnace is realized.

The invention relates to separation process and device for fine sand with organic matter attached to the surface. The separation process includes the steps of firstly, centrifugally settling to-be-treated slurry of the organic matter attached to the surface, stirring and scrubbing the concentrated solution obtained after the centrifugal settling with coarse sand at the same time, sieving the obtained substances to obtain the fine sand and organic matter, leaving the coarse sand, and repeating the process for several times; secondly, sorting the separating organic matter and fine sand. The separation process has the advantages that the organic matter and fine sand adhered together are separated, and the separation process is low in cost and high in efficiency.

According to the application of the PAG quenching liquid in the quenching and tempering process of the wind power main shaft of 20 t or above, a using method comprises the following steps that a workpiece is fed into the PAG quenching liquid after being discharged from a furnace, the cooling time is controlled to be 9.5-11 min/100 mm, the initial liquid temperature of the PAG quenching liquid is controlled to be 15-40 DEG C, and the liquid temperature is controlled to be 15-50 DEG C in the quenching process. The PAG quenching agent used in the invention has the advantages of unique inverse solubility, adjustable concentration, good thermal stability, no deterioration after long-term use, long effective life, no toxicity, no smoke, no flame, health, environmental protection, low comprehensive cost and the like, and the cooling speed of the PAG quenching medium can be realized by adjusting solution concentration, quenching temperature and stirring. The PAG quenching agent is relatively low in oxidative degradability and aging rate, good in hydrolytic stability and relatively high in process adaptability, the optimal concentration and the quenching cooling process of the PAG quenching agent used in the quenching and tempering process of the wind power main shaft of 20 t or above are found through the mode of using the PAG quenching agent and adjusting the concentration and the flow speed of quenching liquid, and the PAG quenching agent has the advantages of being low in energy consumption, low in cost and the like. Therefore, the problems of environmental pollution, high energy consumption and the like caused by a traditional quenching process are avoided.

The invention discloses a tea maker convenient to use and clean. The tea maker comprises a cup body, wherein a pressure relief top cover is mounted at the upper end of the cup body; two ends of the cup body are transparent, a mounting part is arranged on the inner wall of the cup body; a filter screen system detachable from the side seal of the mounting part is installed on the mounting part and divides an inner cavity of the cup body into an upper tea water area and a lower tea bin area, a bottom cover is installed at the open end of the bottom of the cup body, and a rotary telescopic mechanism is arranged on the bottom cover and pushes the filter screen system to control the tea water area and the tea bin area to communicate or be separated. The two ends of the cup are detachable, the whole filter screen system is convenient to take out, all components of the cup body are convenient to clean, the hidden pressure relief function is achieved, the cup cover is convenient to open, meanwhile, brewed objects in the tea bin can be added at any time, and the concentration of the brewed objects in the cup can be adjusted in the using process.

The present invention belongs to a jet-flow type gas-solid separation device, and relates to a thick-thin separation technique in the boiler combustion device and its equipment. Said device is formed from once flow straight pipe section, expanded pipe section connected with said straight pipe section and core pipe placed in the expanded pipe section. Said invention also provides the working principle of said gas-solid separation device.

The invention discloses an underground coal mine explosion-proof method. Under normal conditions, a fire door (10.2) is in the opening state, an electric valve (10.8) is closed, a main gas inlet pipe(6.9) does not communicate with an exhaust pipe (10), when the gas concentration in the main exhaust pipe (10) is detected to be too high by a gas concentration sensor (10.1), a controller (10.3) drives the electric valve (10.8) to open, the main gas inlet pipe (6.9) communicates with the main exhaust pipe (10), and fresh air in the main gas inlet pipe (6.9) enters the main exhaust pipe (10) to reduce the gas concentration in the main exhaust pipe (10); and if a temperature sensor (10.4) or a pressure sensor (10.5) detects abnormal temperature and pressure inside the pipe, the controller (10.3) determines the occurrence of a gas explosion and sends a signal to control the electric valve (10.8) and the fire door (10.2) to be closed and turn on spray headers (10.6) and a powder blower (10.7). The underground coal mine explosion-proof method can effectively prevent the occurrence of the underground gas explosion.

The invention relates to a scrubbing process and device for fine sands with surfaces being adsorbed with organic matter. To-be-treated slurry with the fine sands with the surfaces being adsorbed with the organic matter is subjected to centrifugal sedimentation, a concentrated solution obtained after centrifugal sedimentation is completed and coarse sands with a certain grain size are stirred and scrubbed at the same time, a solution obtained after stirring and scrubbing are carried out is sieved to remove the fine sands and the organic matter, the coarse sands are left to be reused, and the procedures are cycled for a plurality of times. By means of the scrubbing process and device, the organic matter and the fine sands which are bonded together are peeled off through a physical measure, the cost is low, and the efficiency is high.

The invention discloses a fertilizer and water integrated drip irrigation device. The fertilizer and water integrated drip irrigation device comprises a water collecting box, a fertilizer tank, a stirring unit and a drip irrigation pipeline, wherein a water inlet pipe, a first water outlet pipe and a second water outlet pipe are arranged at the bottom part of the water collecting box; the fertilizer tank is composed of a circulating pipe, a stop valve, a high-pressure pump and a spray head; the circulating pipe, the stop valve and the high-pressure pump are connected with the second water outlet pipe; the spray head is mounted at the tail end of the second water outlet pipe; a plurality of branch pipes are arranged on the drip irrigation pipeline; a first side wall and a second side wall are arranged in the inner cavity of the stirring unit at intervals; a first channel and a second channel are formed among the first side wall, the stirring unit and the second side wall; a first opening is arranged on the first side wall; the first channel communicates with the second channel; a connecting pipe is arranged on the second side wall and penetrates through the first opening to communicate with a mixed liquid outlet; a second opening is arranged on the second side wall; and the connecting pipe communicates with the second channel through the second opening. The fertilizer and waterintegrated drip irrigation device provided by the invention is uniform and sufficient in fertilizer application, can realize accurate fertilizer application, can measure and control the concentrationof fertilizer application, saves fresh water resources at the same time, is environmentally-friendly, and can be extensively popularized.

The invention provides a method for preparing hydroquinone. The method comprises the following steps: carrying out anodic oxidation on benzene by adopting an electrochemical method to generate a p-benzoquinone benzene solution; reacting the p-benzoquinone benzene solution with an aqueous hydroquinone solution to obtain an oil phase layer, a water phase layer and a middle layer, wherein the middlelayer is a quinone-hydroquinone suspension formed by generated quinone-hydroquinone crystals; heating the quinone-hydroquinone suspension for dissociation again to obtain a p-benzoquinone-benzene solution; and reducing the p-benzoquinone-benzene solution obtained by dissociation at a cathode to obtain a hydroquinone product. According to the method, p-benzoquinone reaction liquid with an increasedconcentration can be obtained and then enters a cathode chamber for reduction to obtain hydroquinone, thereby overcoming the problem of high energy consumption due to the fact that the concentrationof the p-benzoquinone reaction liquid is not high and a large amount of raw benzene needs to be separated, distilled and cyclically recycled in the process of anodization of benzene or phenol into p-benzoquinone.

The invention discloses an adsorption, aeration and nanofiltration combined technology for arsenic-containing water treatment and a special device for the technology. The technology comprises water quality adjustment, adsorption reaction, aeration oxidation and stirring and nanofiltration separation. The device comprises a raw water storage tank, a water inlet pump, an adsorption reaction tank, anaeration system, a nanofiltration separation system, a pressure gauge and a water outlet pump. Compared with the prior art, the technology has the advantages that oxidation of As (III) into As (V) can be accelerated in an aeration stirring manner, the removal efficiency of total arsenic can be improved, and aeration stirring can remarkably retard the membrane pollution process. The arsenic concentration of effluent treated with the device is lower than the arsenic concentration limit value (0.01 mg/L) specified in the national GB5749-2006 Domestic Drinking Water Health Standard.