65results about How to "Fast temperature control" patented technology

The invention provides a magnetic separation enhanced type electromagnetic thermal desorption method and device for remediating contaminated sites. The method is characterized in that ferromagnetic materials, such as reducing iron powder, are doped into contaminated soil in an ex-situ mixing and stirring manner, the contaminated soil spirally stirred is heated by using electromagnetism, and a thermal desorption heat transfer gasifying effect is improved through the in-situ electromagnetic eddy heating of the ferromagnetic materials; the reaction activity and oxidation reduction capability of the ferromagnetic materials are improved when the ferromagnetic materials produce heat; after thermal desorption is finished, the ferromagnetic materials of which the surfaces react and adsorb pollutants can be separated from the contaminated soil through magnetic separation, recycled and reutilized; and the continuous remediation of contaminated soil is realized. The device also can be used for the in-situ remediation of contaminated soil. After the ferromagnetic materials are added to the soil in situ through a ploughing stirring device, the soil is heated in situ by utilizing an electromagnetic induction coil to carry out excitation eddy heating in the contaminated soil, pollutants are desorbed, and at the same time, the reaction activity of the magnetic materials(for example, reducing iron powder) can be improved; and after reaction is finished, the iron powder can be separated from the contaminated soil through a magnetic separation technology. The device also can be placed in soil to realize in-situ oxidation reduction degradation. The method and device are suitable for the in-situ thermal desorption remediation of circumjacent large area of low-concentration contaminated soil.

The present invention discloses a kind of control device and method for PCR chip array. The PCR chip array without built-in heater and sensor is set on a heat exchanger; four liquid storages store liquid of different temperature; and circulating pumps and eight solenoid valves make liquid of proper temperature to circulate inside the heat exchanger for the chips get required reaction temperature. Over the chip array, is the flexible printed circuit board with heaters and sensors corresponding to the chips for the dynamic trimming of the temperature of the chips. The upper surface of the heat exchanger is divided into several temperature zones, and each of the temperature zones has one chip selected as the template chip with built-in sensor and filled liquid and with the measured temperature value used as the feedback signal for controlling the temperature of the chips in the said zone. One computer with interface circuit is used for the feedforward-cascade control and statistics process.

The invention relates to a telescopic U-shaped border blackbody field stop capable of controlling the temperature, belonging to the field of infrared imaging. The telescopic U-shaped border blackbody field stop provided by the invention concretely comprises a fixed plate, a slide plate, a clamping piece and a temperature control device, wherein the fixed plate is arranged at the lowest layer; the slide plate is tightly installed on a slide slot which is formed by the fixed plate and the clamping piece, and the slide plate can slide in the slide slot, thereby completing the insertion and retraction of a U-shaped border blackbody in a visual field; the clamping piece is similarly and tightly installed at the upper part of the slide plate; one end of the fixed plate is bonded with a temperature source component, and the other end is in tight contact with the slide plate; a temperature measuring component is installed on the slide plate; and the output ends of the temperature source component and the temperature measuring component are respectively connected with a temperature controller. The telescopic U-shaped border blackbody field stop provided by the invention is used for the non-uniform calibration and radiation scaling of a stare type focal plane array and completes the non-uniform calibration and the radiation scaling under the condition that a central view field is not influenced. The telescopic U-shaped border blackbody field stop provided by the invention can be used for the fields of refrigeration, the design and manufacturing of a non-refrigeration infrared focal plane detector thermal imaging system, a star infrared thermal imaging system and an infrared warning system, scientific research and the like.

The invention discloses an air conditioner air deflector and an air conditioner and belongs to the field of air conditioners and fittings thereof. The air conditioner air deflector is designed to solve the problem that an existing air deflector is large in motor consumption. The air conditioner air deflector comprises an air deflector body composed of an upper air outputting plate and a lower air outputting plate at a minimum. The air deflector body can change the space state of the air deflector body so as to adjust the air outputting direction. The air conditioner comprises the air deflector. According to the air conditioner air deflector, the air outputting direction can be adjusted by changing a small angle or position of the air deflector body, the position of the air deflector is adjusted fast, the air deflector motor consumption is low, and the service life is long; downward blowing of hot air and upward blowing of cold air can be achieved by changing the small angle or position of the air deflector body of the air conditioner, the requirement for an air deflector motor is low, the temperature control speed is high (the position of the air deflector is adjusted fast), and the service life of the air deflector motor is long.

The invention provides a thermostat temperature control system and method, and belongs to the field of super-stable thermostat control. The thermostat temperature control system comprises a first-stage temperature control unit and a second-stage temperature control unit, wherein the first-stage temperature control unit is arranged at one end of a temperature control cabinet, and the first-stage temperature control unit comprises a refrigeration system and a first-stage heater and is used for rapid adjustment in an initial stage; the second-stage temperature control unit is arranged at one endof a temperature control cavity, comprises a second-stage heater, is used for finely adjusting the temperature in the final stage, can reduce the influence of the temperature control cabinet and a remote transmission gas circuit on the temperature control of the temperature control cavity and improve the temperature control precision; and during operation, the refrigerating system and the first-stage heater act together to adjust the temperature of gas sent to an inlet of the temperature control cavity to be the optimal temperature T1, and then the temperature of a target point in the temperature control cavity is controlled to be the target temperature T0 through using the second-stage heater. The thermostat temperature control method for controlling the temperature by adopting the devices is divided into five stages. The thermostat temperature control system and the thermostat temperature control method are high in control precision and short in corresponding control time.

The invention discloses a temperature-control air-tight door of a warm-pressing multi-purpose experimental box. The temperature-control air-tight door consists of wall panels of a box body, a door, a door frame, a door shaft, a door shaft fixed seat, a sealing ring and a rotary joint, wherein, the door is spliced and welded by the fixed seat milled with an observation window, a plurality of metal plates of parallel groove channels and a thin-gauge skin and the parallel groove channels at the interlayer of door wall carry out the heat exchanging circulation between flow-in fluid and flow-out fluid through a fluid inputting port and a fluid outputting port; door fixing holes with four screw threads are arranged at the periphery of the door frame and screwed into screw holes by four knobs each of which is provided with a spring, which increases the tightening force and the close pressing of the sealing ring, and can realize the sealing between the door and the door frame; the rotary joint consists of a metal hose, an exchanger and a rotary pipe and can keep internal fluid in a sealing state during the rotation. The temperature-control air-tight door can ensure that the temperature of the door conforms to that of the air in the box, thus basically avoiding the temperature influence of the door and the environment; and the temperature-control air-tight door can also increase the extrusion force between the door and the door frame so that the sealing ring can be contacted with the door more closely so as to effectively reduce the pressure leakage of the experimental box.

The invention discloses an intelligent cooling device for an electric power high-voltage switch cabinet and a use method thereof, the intelligent cooling device comprises a cabinet body, a lightning arrester, a dry powder extinguisher and a grounding rod, and one side of the cabinet body is provided with an insulation board. Beneficial effects are as follows: the intelligent temperature controller, the cooling fan and the insulation board are arranged, automatic cooling can be realized in the switch cabinet; normal operation of high-voltage switch cabinet is realized, cost is saved, temperature control effect is fast, the working efficiency of the high-voltage switch cabinet is improved; and as the dry powder extinguisher, a spray pipe, a smoke sensing head and an alarm are arranged, electrical components in the high-voltage power distribution cabinet can be burnt down to automatically extinguish fire, thus fire accidents can be avoided, and people can be reminded to leave a dangerousarea, the device meets the use requirements of the high-voltage switch cabinet cooling device, electric appliance switches of different sizes can be arranged by arranging the first sliding strip, thesecond sliding strip, the fixing plate, the locking screws and the installation holes, electric switches of different sizes can be installed, the installation is convenient and rapid, and fixed and stable, and the installation efficiency of the high-voltage switch cabinet cooling device is enhanced.

The invention relates to an intelligent temperature-control culture water circulation system which comprises a culture pond, a physical filtering device, a biological filtering device, a sterilization device, an oxygen increasing device and a temperature control device. The culture pond is connected with the physical filtering device, the physical filtering device is connected with the biological filtering device, the biological filtering device is connected with the sterilization device, the sterilization device is connected with the temperature control device, the temperature control device comprises a cover body, a temperature control channel, an electric heating device and an intelligent control device, the temperature control channel is spirally wound in the cover body, the electric heating device comprises a heating tube spirally coiled in the temperature control channel, and the oxygen increasing device comprises an oxygen increasing aerator pipe arranged at the bottom of the culture pond. Different from the prior art, heating and temperature control are conducted on the spiral temperature control channel by adopting the spiral electric heating device in the temperature control device, the temperature control speed can be improved, and the temperature of circulating water can be also controlled to be uniform.

The invention belongs to the technical field of data processing, and discloses a temperature control system and method based on an embedded linux real-time operation system. The temperature control system based on the embedded linux real-time operation system comprises a linux real-time operation system sensible temperature control strategy module, a human body sensible temperature adjustment control module, an air conditioner temperature mode control module, an individual sleep quality detection and evaluation device, an individual comfortable sleep temperature prediction module, a sensible temperature change trend prediction module and a sensible temperature detection sensor matrix device. According to the temperature control system and method based on the embedded linux real-time operation system, the actual requirements of a user are technologically met, the energy-saving actual beneficial effect is achieved, the user experience feeling is improved, the identity sense of the user on a product is improved, and the emotional comfortableness between partners is improved to a certain extent; and meanwhile, the technical implementation method has the innovativeness, and the conditions of meeting the user requirements and achieving the commercial value and the social benefit are achieved.

The invention relates to a bread storage and transportation box and an application method thereof. The bread storage and transportation box comprises a box body, a door formed on one side of the box body, a plurality of temperature sensors and humidity sensors arranged inside the box body, a control cabinet arranged outside the box body, a control panel arranged on one side of the control cabinet, a temperature control device arranged inside the control cabinet, a humidifier arranged in the control cabinet, a controller arranged in the control cabinet, and a power socket arranged on the control cabinet, wherein a compressor in the temperature control device is a variable frequency special compressor; one end of the controller communicates with the temperature sensors and the humidity sensors, while the other end of the controller communicates with the temperature control device and the humidifier; the power socket communicates with the temperature control device and the humidifier. The bread storage and transportation box is capable of always keeping a temperature and humidity in the box body constant, thereby prolonging the storage time of bread.

The invention discloses a temperature-controllable battery module and a temperature control method thereof. The temperature-controllable battery module comprises a shell, a plurality of battery cellsand a control panel, wherein the battery cells are arranged in the shell at intervals, air duct gaps used for heat exchange are formed between the adjacent battery cells, heating pieces and fans are sequentially arranged at inlets and / or outlets of the air duct gaps, a battery cell temperature sensor is arranged on the battery cell, and the control panel is connected with the plurality of batterycells, the battery cell temperature sensor, the heating pieces and the fans respectively. The battery module is simple in structure, can quickly perform self-heating and cooling on the battery cells,and is more efficient in temperature control of the battery cells.

An electric heating device includes a main tube which includes multiple heating areas. Each heating area has a hating bar received therein to provide thermal energy to the liquid passing through the heating areas and to increase the temperature of the liquid. A control unit has multiple control members and each control member is electrically connected to and controls one of the heating bars. Each of the control members has a heat dissipating tube connected thereto. The multiple heating areas are cooperated respective heating bars to increase the contact areas between the liquid and the heating bars to quickly increase the temperature of the liquid.

The invention discloses a barrel for breeding seeds to germinate by utilizing solar energy, relates to a device for breeding the seeds to germinate and belongs to the technology of seed germination of crop cultivation in agronomy. The barrel has the advantages that the functions of absorbing heat, rising temperature and preserving heat and the functions of controlling temperature, ventilating air and preserving moisture can be achieved, and the crop seeds can be soaked, germinated and bred, so that the technical problems of slow germination and irregularity of seeds, even damage to the seed sprouts and the like in the low-temperature seasons with the air temperature lower than 10 DEG C are solved. The barrel comprises a light-transmitting and heat-preserving barrel body, a heater, a radiator and a temperature controller. The barrel is characterized in that the barrel body comprises a barrel cover, a barrel part and a barrel seat, wherein an outer round drum of the barrel part and the barrel cover are made of organic glass or vacuum glass pipes; an inner round drum of the barrel part is made of black stainless steel or stainless steel made by spraying the outer side with black materials; the barrel seat comprises a heat preserving layer and a shell; the shell comprises a fixed bottom drum and a round bottom disc; and a temperature control system comprises the heater, the radiator and the temperature controller.

The invention discloses a temperature-controlled microbial fuel cell which comprises a cell body and an ion exchange membrane, wherein the ion exchange membrane is arranged in the middle of the cell body and divides the cell body into an anode chamber and a cathode chamber; an anode body is arranged in the anode chamber; a cathode body is arranged in the cathode chamber, and an opening is formed in the upper end of the cathode chamber; the anode body is inoculated with anaerobic microorganisms; the cathode body is inoculated with aerobic microorganisms or is not inoculated with microorganisms; the anode body is connected with the cathode body through an external resistance to form a closed loop; both the anode body and the cathode body are connected with a temperature control system; the temperature control system comprises a direct current power supply, a temperature controller and a temperature sensor. According to the invention, the surface temperatures of the anode body and the cathode body of the microbial fuel cell can be quickly regulated and controlled, so that the biological activities of the microorganisms are improved, and the reduction reaction of an electron acceptor on the cathode body is accelerated, therefore, the performance of the microbial fuel cell is improved; the temperature-controlled microbial fuel cell is simple in structure and convenient for the expansion of chemical industry production and application.

The invention relates to a steam inside-heat-transfer type composite reaction kettle for an AC foaming agent. By being controlled by a DCS system, the composite reaction kettle is used for condensation reaction of biurea. The purity of an obtained product is more than 99 percent, and the yield of hydrazine hydrate by virtue of the biurea is within 96-98 percent. By a special design, heating components (11) which are adjustable in number and area are arranged in the kettle, the heating components are in looped connection and convenient to mount and dismount, and the kettle is changeable in size; a steam distribution part (9) and a waste heat steam recovery part (14) are connected outside the kettle and can ensure that condensate water is not deposited in the heating components. By virtue of the DCS system, according to the monitoring of the real-time kettle temperature and the kettle pressure in the kettle, the temperature in the kettle can be quickly adjusted, the temperature rise rate and the holding temperature of the reaction are accurately controlled, the occurrence of side reaction is reduced, the raw material waste and potential safety hazards caused by the violent reaction are effectively prevented, the purity of the product is greatly improved and the yield of the product is greatly increased. Meanwhile, steam and cooling water can be used to the maximum extent, and steam and water resources are saved.

The invention relates to a temperature controllable base table of semiconductor coating equipment and belongs to the technical fields of semiconductor film deposition application and manufacturing. The temperature controllable base table internally comprises a base table medium heat value exchange cavity so that the temperature of the base table can be controlled rapidly, accurately and evenly. The problems that the heat exchange efficiency and capacity of existing semiconductor coating equipment are low and the wafer temperature is not uniform enough and according a film fails due to the fact that the temperature of the base table is increased too fast and decreased slowly in the technique process are solved. The base table comprises an upper plate body and a lower plate body. A sealing cavity is formed between the upper plate body and the lower plate body. A medium can be introduced into the sealing cavity for temperature adjustment. A medium inlet and a medium outlet are formed in the base table to be connected into the sealing cavity and used for circulation of the medium. Through the structure of the system, the temperature of the base table can be automatically adjusted so that the temperature of a heating plate can be ensured. Through automatic temperature control of the circulation medium, automatic adjusting of the temperature of the heating plate can be achieved, and the temperature of the base table can be controlled accurately.

The invention discloses an electrostatic holding chuck with gaseous temperature control and a method for controlling substrate temperature; the electrostatic holding chuck is provided with a plurality of through holes which are communicated up and down, and the lower end of at least one of the through holes is connected with a gas supply channel; the lower end of one through hole is connected with a gas return channel; and the gas supply channel is connected with a gas temperature controlling device. In the technological process, gas with required temperature can be led through the gas supply channel and reflows from the gas return channel, and the circulation is formed between the electrostatic holding chuck and the substrate so as to directly control the temperature of the substrate, and the temperature controlling speed is fast, and the energy loss is less.

The invention discloses a draught fan assembly and an air conditioner with the same and belongs to the field of air conditioners. The draught fan assembly and the air conditioner with the same are designed for solving the problem that an existing device is poor in refrigerating / heating effect. The draught fan assembly comprises a shell provided with two air outlets and at least one set of draught fan arranged in the shell. The two air outlets are located in the two opposite sides on the top face of the shell, or one air outlet is located in the top face of the shell, and the other air outlet is located in the side face of the shell. The draught fan assembly further comprises a baffle which is arranged in front of the air outlets of the draught fan, and outlet air of the draught fan is blocked by the baffle and is deflected towards the two air outlets. The air conditioner comprises the draught fan assembly. According to the draught fan assembly and the air conditioner, double-face air discharging is achieved, the problem that the refrigerating / heating effect is poor due to one-face air discharging of the existing device is solved, the application range is wide, and the draught fan assembly and the air conditioner with the same are particularly suitable for places such as corridors and narrow and long type meeting rooms.

The invention discloses a semiconductor laser device with stable wavelength. The semiconductor laser device comprises a power supply, an LD module and an optical fiber beam combiner, the plurality of LD modules are arranged in parallel, each LD module is independently connected with one power supply function module, the power supply function modules are connected with a power supply, and the LD modules connected with the power supply function modules are connected or disconnected through the power supply function modules; output optical fibers of the LD modules are connected with an input arm of an optical fiber beam combiner, and a light source is output through the beam combiner. The semiconductor laser device with the stable wavelength has the advantages of being stable in wavelength in a full power range, adjustable in power grading, efficient in distributed heat dissipation, resistant to high and low temperature environment work, easy to maintain and capable of achieving engineering.

The invention discloses a water cooling device of a multi-power transmission (MPT) microwave energy vacuum tube. The water cooling device of the MPT microwave energy vacuum tube comprises a fixed baseboard, a water circulation main body and a microwave energy vacuum tube adaptive substrate, wherein the water circulation main body is a hollow cavity table body, a single circulation water channel is arranged inside hollow cavity table body, a water inlet and a water outlet which are communicated with the single circulation water channel are arranged on the wall of the table body, the microwave energy vacuum tube adaptive substrate is located on the upper portion of the water circulation main body, a groove body which is matched with the structure of the microwave energy vacuum tube is formed in the table face on the top portion of the substrate, and a temperature sensor is arranged on the bottom of the groove body and fixed on the bottom of the microwave energy vacuum tube adaptive substrate and used for detecting temperature of the vacuum tube. The water cooling device can cool the MPT microwave energy vacuum tube at any time.

The invention belongs to the technical field of detection equipment of inorganic materials, and discloses a device and a method for measuring free variation of the volume of cement paste under programmable temperature control. The device can transmit the free variable volume of the cement paste under the constant temperature condition and the thermal insulation condition into a transparent capillary tube liquid level meter, the liquid level variation of the transparent capillary tube liquid level meter can be directly read and the liquid level value can be sent to a liquid level monitor by using a liquid level photoelectric direct reading meter, the liquid level monitor sends a signal to an information processor, the signal processor directly converts the liquid level value to be a volumevariable value, and corrects the volume variation at the temperature, and the volume variation value of the to-be-measured cement paste is directly calculated. The device and the method have the advantages of being convenient to operate, high in measurement accuracy, accurate in result and good in repeatability.

The invention discloses a temperature control system, a temperature testing system for an engine and an automobile. The temperature control system comprises a cold and hot loop which is provided with a device to be cooled and heated, a high-temperature medium tank and a low-temperature medium tank, wherein the high-temperature medium tank is connected with the cold and hot loop so that high-temperature mediums at first preset temperature can be suitable for being output to the cold and hot loop, the low-temperature medium tank is connected with the cold and hot loop so that low-temperature mediums at second preset temperature can be suitable for being output to the cold and hot loop, and the first preset temperature is higher than the second preset temperature. According to the temperature control system, temperature control speed is high, and the sudden warming and sudden cooling requirements of the device to be cooled and heated are met.

The invention belongs to the field of new energy, and particularly relates to a heat dissipation, heat preservation, energy absorption and vibration reduction dual-function battery compartment structure. The structure comprises a bottom plate and a top plate; the left sides and the right sides of the bottom plate and the top plate are connected through side plates, the front sides and the rear sides are connected through a front plate and a rear plate respectively, and a cavity used for containing a lithium battery pack is jointly formed; the bottom plate and the top plate are each provided with an air channel penetrating front and back, and the front end and the rear end of each air channel are each provided with a sliding mechanism. Through-hole foamed aluminum is used as a filling material, closing and opening of the battery compartment sliding plate are achieved through the intelligent temperature control system so as to control the heat preservation and heat dissipation functions of the battery compartment, meanwhile, the foamed aluminum material and the shell steel plate structure form an interlayer structure, and vibration energy generated by different road conditions can be absorbed; therefore, the excessive dependence of the energy storage characteristic of the lithium battery on the temperature can be eliminated, the requirements of new energy automobiles on the structure of the battery compartment device in high-cold and high-heat areas with large temperature difference in four seasons are met, and safety threats caused by vibration of the lithium battery are avoided.

The invention discloses a nucleic acid pre-denaturation system and a method for performing pre-denaturation treatment on nucleic acid. The nucleic acid pre-denaturation system comprises: a feeder for providing a liquid raw material with nucleic acid; the first heat exchanger is used for heating the liquid from the feeder; the incubator is separated from the first heat exchanger and is used for incubating the liquid from the first heat exchanger; and a second heat exchanger separate from the incubator for cooling the liquid from the incubator. According to the nucleic acid pre-denaturation system provided by the invention, the efficiency of nucleic acid pre-denaturation can be improved.

The invention discloses a refrigeration structure for a heat dissipation pipe, and the structure comprises a cooling fan and the heat dissipation pipe. The structure is characterized in that the central part of the heat dissipation pipe is provided with a turning corner; two ends of the turning corner are respectively connected with the left heat dissipation pipe and the right heat dissipation pipe; the cooling fan comprises a chip cooling fan and a refrigeration fan; the chip cooling fan is connected with the left heat dissipation pipe, and the refrigeration fan is connected with the right heat dissipation pipe; the chip cooling fan and the refrigeration fan supply air to the interior of the heat dissipation pipe at the same time. The heat dissipation pipe is used for control, and the chip cooling fan and the refrigeration fan supply air to the interior of the heat dissipation pipe at the same time, so the structure can form air turbulence in the heat dissipation pipe, and mixes coldair and hot air. The setting of the turning corner enables the temperature of the right heat dissipation pipe to be lower than the temperature of the left heat dissipation pipe. Through the integrateddesign, the structure can enable the heat of the left heat dissipation pipe to be transmitted to the interior of the right heat dissipation pipe for heat dissipation. Moreover, the right heat dissipation pipe is close to the outside, so the structure is better in refrigeration effect, is quicker in heat dissipation, and can achieve the quick heat dissipation.

The invention provides a production device of phosphorus oxychloride, which includes: a liquid oxygen storage trough, a vaporizer, a buffer tank, a phosphorus oxychloride elevated tank, a first reaction kettle, a second reaction kettle, and a condenser. Jackets are disposed on the outer sides of the bodies of the first and second reaction kettles while coil pipes are disposed in the inner sides, so that dual cooling is achieved and the device has good condensation effect. A pressure sensor is fixed on the outer surface of the inner layer of the buffer tank for sensing aging degree of the inner layer of the buffer tank. The condenser is operated in a multi-stage condensation manner, wherein a plurality of vapor pipes are disposed in the condenser. The vapor pipes and a coolant pipe are arranged separately. An emergency water discharge outlet is arranged on the lower side of the cylindrical body so that treatment when the pipes leak can be performed timely. The production device is greatly improved in safety and reliability, increases utilization rate of raw materials and improves production efficiency.

The invention relates to a temperature control system of a tool car. The temperature control system comprises an exhaust fan, an air inlet fan, a first air heater, a second air heater and a temperature and humidity measurement and control device, a relay is arranged on the temperature and humidity measurement and control device, the temperature and humidity measurement and control device is arranged in a tool car compartment and used for monitoring and displaying temperature and humidity in the tool car compartment in real time, and switching signals are sent to the relay. The temperature and humidity in the tool car compartment can be controlled, and therefore the electric power operation is safer. The temperature control system is scientific and reasonable in layout, low in energy consumption, low in cost, convenient and flexible to implement, high in efficiency and beneficial to application and popularization.

The invention discloses power plant and coking plant coal processing equipment. The power plant and coking plant coal processing equipment comprises a material storage box, a loading part, a working box, a cutting and smashing part, a grading and screening part and an electric cabinet. The loading part used for conveying materials upwards is arranged on the material storage box, the working box isarranged on the lower part of the upper end of the loading part, the cutting and smashing part used for smashing the materials is arranged on the upper part of the working box, the grading and screening part is arranged at the position, on the lower part of the cutting and smashing part, of the working box, and the electric cabinet is electrically connected with the loading part, the cutting andsmashing part and the grading and screening part through wires. By adopting the power plant and coking plant coal processing equipment, the equipment can conduct smashing treatment on the coal appliedto a power plant and a coking plant, meanwhile, the smashed coal can be graded according to sizes, the coal in different sizes can be selected according to burning temperatures, and the temperature control speed is high.

The invention discloses a powder surface modification device which comprises a charging barrel composed of a barrel body, a barrel bottom and a barrel top and a stirrer arranged in the charging barrel, wherein the barrel top is provided with a gas outlet used for discharging gas, the barrel bottom is provided with a gas inlet, a permeable plate is arranged in the gas inlet, the permeable plate allows gas to enter the charging barrel and does not allow powder to flow out of the charging barrel, the gas inlet is communicated with an air source and is used for guiding inlet air into the charging barrel, and the stirrer comprises a first group of blades arranged in the bottom of the charging barrel and a second group of blades arranged in the top of the charging barrel. The invention also provides a method for conducting power surface modification by using the device. The powder surface modification device and method have the advantages of being uniform in modification temperature, rapid in temperature rising and cooling, small in powder breakage rate, high in modified powder yield, small in comprehensive energy consumption, small in equipment abrasion, free of particle attachment to the inner wall of equipment and the like.