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127 results about "Blend time" patented technology

Blend time, sometimes termed mixing time, is the time to achieve a predefined level of homogeneity of a tracer in a mixing vessel. Blend time is an important parameter to evaluate the mixing efficiency of mixing devices. In order to make this definition valid, the tracer should be in the same physical phase (e.g. liquid) as the bulk material.

High-efficiency-stirring mixing device for chemical engineering

The invention discloses a high-efficiency-stirring mixing device for chemical engineering. The device comprises a box body, the tops at two sides of a box body inner cavity both communicate with a liquid inlet pipe, the bottom at the right side of the box body inner cavity communicates with a liquid outlet pipe, and the centers at the two sides of the box body inner cavity are separately provided with a sliding groove. According to the invention, stirring boxes, a forward/reverse rotation electrical machine, a stirring shaft, a connection rod, fixing rods, a thread sleeve, screw threads, fixing shafts, through holes and vane wheels are arranged in the device and are used in a cooperating manner, and a plurality of chemical mixed solutions can be stirred up and down, thus stirring efficiency of the mixing device for the chemical engineering is higher, problems that when a conventional mixing device for the chemical engineering is used, the conventional mixing device for the chemical engineering can just stir a plurality of the chemical mixed solutions left and right, and cannot stir a plurality of the chemical mixed solutions up and down and left and right at the same time, so that a condition that the uniform-mixing time of a plurality of the chemical mixed solutions is relatively long, and stirring efficiency of the conventional mixing device for the chemical engineering is relatively low are solved.
Owner:张家港保税区贤德国际贸易有限公司

Method and apparatus for determining a mixing regime for use in the preparation of animal feed from a set of ingredients, and a system for producing the animal feed

A method and apparatus for determining a mixing regime for use in the preparation of an animal feed in which a main computer is programmed to store a master list of ingredients which are available to farmers and from which a farmer can select a specific set of ingredients for the preparation of animal feed. The main computer is programmed to store the ingredients in a look-up table cross-referenced with standard mixing periods to which the respective ingredients should be subjected during the mixing regime to produce an animal feed. Additionally, the look-up table contains mixing factors by which the standard mixing periods may be altered in order to take account of non-standard conditions, such as variations of the ingredients, the proportion of the particular ingredient, the average size or weight of the animals and the mixing apparatus and condition thereof in which the animal feed is to be mixed. The computer is programmed to determine the mixing period to which each ingredient is to be subjected in the mixing apparatus based on the corresponding standard mixing periods and any mixing factors which should be taken into account. The computer is programmed to then produce a sequence in which the ingredients are to be loaded into the mixing apparatus and the instants at which the respective ingredients are to be loaded into the mixing apparatus, so that each ingredient is subjected to the appropriate mixing period for that ingredient during the mixing cycle of the mixing regime, in order to avoid over-mixing and under-mixing of ingredients.
Owner:ALLTECH FARMING SOLUTIONS LTD

Performance test system of vertical type mechanical agitation equipment

The invention discloses a performance test system of vertical type mechanical agitation equipment. A spiral semicircular tube clamping sleeve is welded on the outer side of the agitation equipment; steam heating, heat conducting oil heating and cooling water cooling are realized by controlling a valve in a pipeline; a flow meter, a temperature meter and a pressure meter are arranged on an upper port and a lower port of the clamping sleeve; two driving systems are arranged at the upper end of the agitation equipment, so that dual-shaft agitation (having three motion modes, namely homodromous rotation, reverse rotation and single-shaft rotation) as well as frequency conversion and speed regulation are realized; torque sensors are arranged on agitation shafts at the output ends of two motors; a thermal resistance sensor is arranged on the surface of the inner wall of the agitation equipment; a thermocouple sensor is arranged in internal liquid; and the sensors are connected with a console. The performance test system can perform cold and hot die tests on low-viscosity fluid, middle-high-viscosity fluid, Newton fluid and non-Newton fluid under different operating parameters so as to obtain parameters such as a heat conducting coefficient, a mixing time, agitation power and the like, and evaluate the heat conducting performance, the mixing characteristic and the power consumption characteristic of various working conditions.
Owner:ZHEJIANG UNIV

Stirring/flow-guiding multi-phase reactor

The present invention provides a stirring/guide multi-phase reactor, comprising a cylindrical sealed shell, a guide cylinder, a stirring device, air inlet device and an air outlet device; wherein, the cylindrical sealed shell is provided with a material inlet and outlet device; the lower part inside the shell is provided with the guide cylinder with an external diameter smaller than the internal diameter of the shell, a clearance is left between the guide cylinder and the shell bottom; the stirring device is arranged in the clearance between the guide cylinder and the shell bottom and comprises a stirring shaft and a blade fixed on the stirring shaft; the stirring shaft passes through the shell bottom and extends out of the shell; the air inlet device is arranged on the shell bottom and/or a lateral wall and the air outlet of the air inlet device is arranged below the blade; the air outlet device is arranged on the shell top. The stirring/guide multi-phase reactor provided by the present invention, which adopts the combination of the bottom-type stirring device and the guide cylinder, only needs comparatively low energy consumption to reach and even surpass the air rate the multi-layer or single-layer stirring reactor requires a plurality of times of energy consumption. Due to short mixing period and high effective energy utilization, the reactor is suitable for various industrial processes.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1

Method and device for preparing medicament particles with nano-micro structure

The invention provides a method and a device for preparing medicament particles with a nano-micro structure and belongs to the field of medicament preparation. The method comprises the following steps that: an internal circulation rotary filling bed is used as a precipitation-crystallization device; and in a cavity, liquid materials are lifted from the bottom to the inner wall of a rotor by a lifter, and the rotor is driven to rotate by a motor to generate centrifugal force, so that the material liquid passes a material filling layer, is thrown out from the outer wall of the rotor and then isreturned to the bottom of the cavity under the gravity action. The steps are cycled. The volume ratio of two kinds of material liquid is 1:2 to 1:100, and the two kinds of material liquid are fully mixed on the material filling layer to form crystallization suspension; the frequency of the motor is 25 to 50Hz, the mixed time is 5 to 20 minutes, and the crystallization temperature is 0 and 25 DEG C; and the crystallization suspension is filtered, washed and dried to form the medicament powder with the nano-micro structure. In the method, by adjusting the volume ratio, crystallization temperature, mixed time, frequency of the motor and the like of the two crystallization systems and the two kinds of material liquid, the medicament particles, which have the uniform nano-micro structure and of which the average grain size is controllable, can be obtained; and the method also has the advantages of simple process, safe operation, energy conservation, low cost and the like.
Owner:BEIJING UNIV OF CHEM TECH

Fine powder mixing device as well as concrete mixing equipment and concrete mixing process using fine powder mixing device

InactiveCN102896699ASimple structureEasy to rotate speedCement mixing apparatusReducerEngineering
The invention discloses a fine powder mixing device, comprising a shell main body, wherein a horizontal main shaft is arranged in the shell main body; a plurality of mixing blades are arranged on the main shaft; the main shaft is connected with a motor via a speed reducer outside the shell main body; and the charge port of the device is a vertical inlet. Concrete mixing equipment using the fine powder mixing device comprises a main mixing machine, wherein the main mixing machine is provided with two charge ports, one charge port is a sand inlet, and the other charge port is a powder inlet; and the powder inlet is connected with the discharge port of the fine powder mixing device. Concrete mixing process using the fine powder mixing device comprises the following steps of: firstly, uniformly mixing a powder in the fine powder mixing device; and then conveying the powder into the main mixing machine to mix together with sand in a ratio according to grade requirements. According to the invention, the requirements of rapidly and uniformly mixing and rapidly unloading can be met, few moving parts are provided, structure is simple, and maintenance is convenient. The fine powder mixing device is simple in structure, convenient to choose for a rotation speed, short in mixing time, and high in mixing efficiency.
Owner:XIAN DELONG NEW BUILDING MATERIALS TECH +2

Variable frequency low speed mixer and method for mixing materials with different stacking densities

The invention provides a variable frequency low speed mixer and a method for mixing materials with different stacking densities. The mixer comprises a main mixing chamber and an auxiliary mixing chamber, wherein the auxiliary mixing chamber is arranged in the main mixing chamber; a material mixing cover of the main mixing chamber is provided with a granular material feed port; the bottom of the main mixing chamber is provided with an impeller mechanism; the top of the auxiliary mixing chamber is provided with a powdery material feed port and a liquid material feed port; the wall of the auxiliary mixing chamber is provided with a liquid material discharge port and a plurality of powdery material discharge ports; the top of the auxiliary mixing chamber is provided with a liquid material temporary storage chamber which is communicated with the liquid material feed port and the liquid material discharge port; and by the method, the granular material or preliminarily mixed material is threw up by using the main mixing chamber and the powdery material or the liquid material is scattered in the main mixing chamber by using the auxiliary mixing chamber, so various materials with large stacking density difference are mixed uniformly. The mixer and the method can effectively prevent the phenomenon of non-uniform mixing of the materials, realize premixing with good effect and reduce the probability of demixing of the granular material and the powdery material while greatly shortening the mixing time.
Owner:合诚技术股份有限公司

Pre-mixing type spiral powder feeding device

The invention discloses a pre-mixing type spiral powder feeding device which comprises a rack, a plane table, weighing sensors, a box, a motor, a rotating shaft, a hollow shaft, a sealing seat, a blowing pipe, a spiral impeller, a feeding nozzle, a discharging nozzle and a controller. Raw materials and a modifier are fed into the box through the feeding nozzle, and the controller controls the motor to drive the spiral impeller fixedly connected with the hollow shaft to rotate through the rotating shaft, so that the raw materials and the modifier are continuously conveyed; meanwhile, compressed air is pumped into the hollow shaft through the blowing pipe, so that the raw materials and the modifier are blown up, and the raw materials and powder are mixed; and the raw materials and the modifier are mixed and pushed to move forwards by the spiral impeller at the same time till mixtures are discharged from the discharging nozzle, and the weighing sensors are used for weighing, so that the output amount of the raw materials and the modifier is precisely controlled. The pre-mixing type spiral powder feeding device is simple in structure, the raw materials and the modifier are mixed and pushed to move forwards by the spiral impeller at the same time so as to be mixed in advance, the subsequent modification mixing time is shortened, and modification efficiency is improved.
Owner:安徽金鼎新材料有限公司

Batching device for uniformly and continuously measuring microscale solid powder and particles

The invention discloses a batching device for uniformly and continuously measuring microscale solid powder and particles and relates to the continuous and uniform measuring and batching device for metallurgy, construction materials, foods and other manufacturing fields. The batching device is characterized in that the device structurally comprises a feeding box, a variable-speed spiral conveyor connected with a discharging pipe of the feeding box, and a weighting spiral conveyor connected with a discharging outlet of the variable-speed spiral conveyor; an electronic scale is arranged on the weighting spiral conveyor, and the data of the electronic scale are connected with the control end of a variable-frequency and variable-speed motor of the variable-speed spiral conveyor through a programmable logic controller (PLC). According to the batching device for uniformly and continuously measuring the microscale solid powder and the particles, close-cycle control, continuous operation and sealed operation in the batching process are achieved, sufficient mixing time and mixing space of the microscale solid powder, the particles and materials are ensured; the precision, the continuity and the stability of adding the microscale solid powder and the particles are ensured, and the microscale solid powder and the particles are sufficiently dispersed and mixed in the materials.
Owner:GUIZHOU BRANCH CHINA ALUMINUM IND
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