848results about How to "Dehydration fast" patented technology

The present invention mainly relates to the structure of a microwave drier, especially a structure of a microwave vacuum drier. A microwave vacuum continuous drier with two drying chambers, includes a tank (A), a hoisting system (8), a vacuum system (9), wherein a delivery device (6) is disposed in the tank (A), and a discharging device (5) below the delivery device (6), characterized by including a microwave vacuum drying chamber (A3) in the tank (A), a microwave heater system (1) on the wall of the tank (A) of the microwave vacuum drying chamber (A3), a separating plate (2) on one side of the microwave vacuum drying chamber (A3) to form a vacuum cooling solidifying chamber (A4). The driving belt (64) of the delivery device (6) traverses the window (21) arranged on the separating plate (2). On one end of the tank (A) is arranged with the microwave vacuum drying chamber (A3) and on the other end is the vacuum cooling solidifying chamber (A4). The separating plate (2) separates the two chambers to make the temperature have the obvious gradient. The invention adopts the way of microwave radiation heating, utilizing the characters of microwave high efficiency, easy to control, antisepsis, sterilization, fast heating, even heating, fast dehydration, preserving to reduce the power waster and advance the efficiency.

The invention relates to a belt compress filter for dewatering the micro grains, wherein it is formed by a frame, a driver, a feeding device, a compress area and an auxiliary device; said compress area comprises a compress filtering roller and a filtering belt; the driver comprises a motor and a gear box; the auxiliary device comprises a tension roller, a scrape device, a water collector, a corrector, and a filter belt washer. The invention is characterized in that: the back of filter belt is lined with steel compress belt; the compress filtering rollers are compacted arranged. The invention can improve the filter pressure of compress filter to improve the balance point between the filter pressure and the filter resistance, to overcome the defects of present technique, while it can improve the dewatering efficiency and the yield.

The invention discloses a sterilization and pasteurization material, comprising a substrate, wherein functional groups and sterilization and pasteurization components which can capture bacteria and / or virus are fixed on the surface of the substrate. The substrate is preferably made of non-weaving cloth with water-absorbing property. The invention also discloses a medical protective mask made of the sterilization and pasteurization material. Quaternary ammonium salt, sulfur-contained compounds and sulfoacid-contained compounds which are fixed on the surface of the sterilization and pasteurization material can be specifically combined with cell membranes of bacteria and viruses, actively captures the bacteria and the virus and can cause the sterilized and pasteurized components attached to the surface of the material to rapidly take effect. The sterilization and pasteurization material can rapidly kill the bacteria and viruses in five minutes. The medical protective mask has the functions of sterilization, antivirus, disease prevention, air purification and the like and can prevent the droplet transmission of the viruses.

The production method for cerium oxide particles of the present invention is a method of producing a cerium oxide particle by heating a cerium compound from a normal temperature to a temperature range of 400° C. to 1200° C., and comprises at least a temperature raising stage of a temperature rise speed of 2° C. / hour to 60° C. / hour, or proceeds via a stage of heating while supplying a humidified gas in a temperature raising process. By the method of the present invention, a cerium oxide powder whose particle diameter distribution of primary particles is narrow can be obtained. An aqueous cerium oxide slurry produced from the powder enables an improvement in the productivity and a reduction in the cost of a polishing step, because if it is used as an abrasive a high-quality polished face is obtained without deteriorating the polishing speed. The aqueous cerium oxide slurry of the present invention is particularly useful as an abrasive for final finish of a substrate whose main component is silica.

In accordance with the present invention, there is provided a method for producing an enhanced fertilizer, comprising the step of mixing a granular fertilizer with a ferment comprising active bacteria in a fermentation medium, to obtain an enhanced fertilizer. The ferment is used at a rate of at most 3 liters of ferment per ton of fertilizer. In accordance with the present invention, there is also provided an enhanced fertilizer comprising a fertilizer and bacteria chosen for their specific properties on crops or vegetation.

The invention relates to a dewatering control method for a roller washing machine. The dewatering control method includes a distribution detecting step and a dewatering step. The distribution detecting step includes that an eccentric value is divided into a plurality of gears, and during distribution, the gears are tried from low gears to high gears. If an actual eccentric value falls at a certain gear, low-speed dewatering is conducted, after a part of water is removed, an eccentric value is detected, and if the eccentric value still falls at the gear, medium-speed dewatering is conducted, otherwise, distribution is conducted again. Eccentric value detecting is also conducted during medium-speed dewatering, and if gears of an eccentric value are the same, final dewatering is conducted, otherwise, distribution is conducted again. During dewatering, low-speed dewatering and medium-speed dewatering are conducted first, eccentric value detecting is conducted, and final dewatering speed is relevant to the gears, and therefore, vibration of the washing machine can be fully reduced, noise is reduced, and box body collision can be avoided. Load with poor balancing performance is distributed at a high gear, dewatering at the set rotating speed is conducted, distribution detecting time can be effectively reduced, and power consumption and dewatering time can be effectively reduced.

A method for producing an apertured structured material for accommodating passage of fluids, particularly high viscosity fluids, through the apertured structured material. In one embodiment, the apertured structured material is a composite material formed by differential shrinkage of a shrinkable second layer, for example an ethylene-propylene copolymer, which is laminated to a first layer, for example a polypropylene polymer. During the differential shrinkage process, a plurality of slits which are formed in the second layer open to form uniformly-shaped apertures. In another embodiment, an apertured structured heterogenous material is made of a heterogeneous mixture of at least two homogeneous fiber sets or components having different shrinkage extents.

The invention discloses a skin care composition with moisturizing and wrinkle-resistant effects. The composition is prepared by using sterile deionized water as a solvent, and the solute comprises amino acids, vitamins and trace elements including glycine, phenylalanine, alanine, proline, glutamine, serine, arginine, threonine, asparagine, tryptophan, aspartic acid, tyrosine, cysteine, valine, cystine, vitamin H, glutamic acid, nicotinamide, histidine, vitamin B6, isoleucine, vitamin B2, leucine, and vitamin B1. The skin care composition has good moisturizing and wrinkle-resistant effects, and has the advantages of safety without side effect, skin nourishing and good skin penetration capacity.

The invention discloses a tea making technology using light microwaves. The technology comprises the following steps of: sunning with light waves; putting fresh tea leaves in light wave equipment; turning on a power supply, wherein the wavelength of the light waves is 250-800nm, the power is 400-3,000W, and the illumination time is 1-10min; removing green with light microwaves, drying and sterilizing; extracting aroma with light waves; and performing tea screening, check and vacuum packing to obtain a tea product. The light microwaves are applied to the tea processing; and due to the non-thermal effect of the light microwave electric field in the green removing and drying processes, the processing time is greatly shortened, and the tea quality is maintained. Meanwhile, the light microwaves have a sterilization function and can effectively kill microorganisms in tea. Through the tea making technology using light microwaves, the fresh leaves can be collected and processed on the site, and the processes of sunning, green removing, drying, aroma extraction and sterilization are finished in one step, thus the efficiency is high, the operation is simple and the production cost is effectively reduced. Through the invention, the prepared tea has high and stable quality.

A process and system for substantially isoelectric separation of an oil sand slurry is disclosed and described. The process can include mining oil sand, crushing the oil sands, forming a slurry of the oil sands, and transporting the oil sands slurry to a sinusoidal pipe. The sinusoidal pipe acts to digest the slurry from which bitumen can be separated using a hydrocyclone. Overflow from the hydrocyclone can be further treated using a revolving oleophilic device from which bitumen is recovered. Various optional further treatments can be used to dewater and / or further treat the bitumen and other process streams. The use of caustic soda, long-term tailing ponds, and froth flotation can be avoided resulting in an effective production of oil using less water than currently conventional processes.

A method for manufacturing tobacco sheet taking substrate as a carrier through a dry paper making method comprises the following steps: spraying slurry onto the right side of the substrate through a high pressure spraying method, and meanwhile carrying out negative pressure suction across a wire belt to the reverse side of the substrate; then sending the substrate into an oven and carrying out medium temperature baking and humidity discharging under the condition that the temperature of the substrate is 55 DEG to 70 DEG, and enabling hot air inside the oven to flow directional from the right surface of the substrate to the reverse surface of the substrate to carry out humidity discharging; sequentially, carrying out normal temperature humidity discharging treatment; setting medium temperature baking and humidity discharging time and the normal temperature baking and humidity discharging alternatively; and repeating the steps on the reverse side of the substrate, namely a tobacco sheet is prepared. The substrate is prepared by that scattered material is evenly paved and absorbed onto a formation fabric for dry paper making to form a fiber thin layer under the vacuumpumping of a vacuum air pumping device under the formation fabric, and carrying out antistatic-electricity treatment; and spraying adhesion agent onto a fiber thin layer, under the combination of mist spraying and vacuum take-off on sprayed back surface; and finally carrying out drying.

A method for producing a structured material for accommodating passage of fluids, particularly high viscosity fluids, through the structured material. In one embodiment, the structured material is a composite material formed of a first layer, for example a polypropylene polymer, having a first shrinkage extent and a second layer bonded to the first layer, for example an ethylene-propylene copolymer, having a second shrinkage extent different from the first shrinkage extent. In another embodiment, a structured heterogenous material is made of a heterogeneous mixture of at least two homogeneous fiber sets or components having different shrinkage extents.

The invention provides soil ectopic leaching restoring complete equipment, belongs to the technical field of site contamination repairing, and solves the problems that existing leaching equipment is generally poor in soil texture applicability, single in repairable pollutant, numerous and jumbled in leaching equipment system, high in operation intensity, large in water consumption and drainage quantity and the like. The equipment comprises a wet-type screening mechanism, a spiral classifying mechanism, a leaching restoring mechanism, a waste water treatment mechanism and a waste water recycling mechanism which are arranged successively, and polluted soil is separated from the spiral classifying mechanism and the leaching restoring mechanism via the wet-type screening mechanism to obtain coarse gravels, fine gravels and clean soil so as to implement a soil ectopic leaching restoring process. The soil ectopic leaching restoring complete equipment is suitable for restoring of heavy metal and / or organic polluted soil and ectopic leaching restoring of soil with different grain diameters, and has the advantages of wide application range, good decrement effect, stable repairing effect, simplicity and convenience in operation and running, small water consumption, high waste water recycling rate and the like.

The present invention provides a novel method for enhancing engraftment of haematopoetic stem cells by an ex-vivo pretreatment comprising the steps of obtaining a sample containing haematopoetic stem cells and admixing a prostacyclin analogue to obtain a mixture, incubating said mixture for a period of time sufficient to stimulate G alphas-signalling in said cells and optionally and isolating said stimulated cells. Further, a composition comprising a prostacyclin analogue for use in the treatment of individuals undergoing haematopoetic stem cell transplantation is provided.

The invention provides a compound coagulant used for treating rare-earth highly concentrated ammonian wastewater to recover industry ammonium chloride and a treatment method, belonging to the technical field of chemical environment protection and resource recovery. The compound coagulant is a mixed liquor of ammonium oxalate, ammonium sulphate, heavy metal precipitator DTCR and polyacrylamide (PAM). The treatment method for treating wastewater by using the compound coagulant comprises the following steps: firstly, oil substances in the wastewater are removed through a separation tank and an air floating chamber; secondly, the wastewater enters a pH adjusting precipitation tank to adjust the pH value to be 7.5-8.5; thirdly, the wastewater enters a coagulative precipitation tank, the compound coagulant is added, the wastewater after being coagulated and precipitated enters the pH adjusting precipitation tank to adjust the pH value to be 2.5-4, the wastewater after being adjusted the pH value enters an active carbon filter tower to be absorbed and filtered and then is evaporated and concentrated under the condition of negative pressure. The compound coagulant has simple treatment method, low cost and good effect. The treatment method has short process and simple and easy treatment, not only solves the problem of the pollution of the highly concentrated ammonian wastewater, but also achieves the purpose of recovering valuable materials.

The invention discloses a producing process of quaternary ammonium type cation modifying starch, comprising the following steps of: mixing, modifying, neutralizing, physically synergizing, screening, weighing and packing. The invention ensures that the common starch has cation characteristics and higher substitution values, reduces pasting temperature and precipitability of starch, has the advantages of reasonable producing process, high heating efficiency, thorough modification, good film forming property, high binding rate, high retention, low cost, small investment, low energy consumption, low pollution, simple producing process, high production efficiency, stable and reliable quality and wide application range and is suitable for large-scale production.

A process for flocculating and dewatering oil sands fine tailings is provided, comprising: adding the oil sands fine tailings as an aqueous slurry to a stirred tank reactor; adding an effective amount of a polymeric flocculant to the stirred tank reactor containing the oil sands fine tailings and operating the reactor at an impeller tip speed for a period of time that is sufficient to form a gel-like structure; subjecting the gel-like structure to shear conditions in the stirred tank reactor for a period of time sufficient to break down the gel-like structure to form flocs and release water; and removing the flocculated oil sands fine tailings from the stirred tank reactor when the maximum yield stress of the flocculated oil sands fine tailings begins to decline but before the capillary suction time of the flocculated oil sands fine tailings begins to substantially increase from its lowest point.

The invention discloses sewage sludge compost. The compositions of the sewage sludge compost comprises the following components in proportion by weight: 2-6 parts of sewage sludge, 0.5-1.5 parts of plant ash, 0.1-0.3 part of straw powder, 0.5-1.5 parts of mushroom residue, 0.5-1.5 parts of chicken manure, and 0.5-1.5 parts of leavening agent. In the above way, the invention provides the sewage sludge compost and a preparation method of the sewage sludge compost, the sewage sludge is transformed into high-quality organic fertilizer for greening, reduce the cost, so that the environmental pollution is reduced, the cost of processing sewage sludge by dehydrating is reduced, and the fermentation treatment of the sewage sludge is accelerated; and the sewage sludge compost has the characteristics of obvious efficiency and low cost.

The invention discloses an industrial sludge treatment method and a method for preparing various fertilizers by using the treated industrial sludge. The industrial sludge treatment method comprises the following steps of: after industrial sludge is diluted, adding a heavy metal ion capturing and precipitating agent DTCR and reacting the agent with heavy metal ions in waste solution so as to generate water-insoluble chelated salt; adding a polyacrylamide flocculating agent to ensure that the chelated salt forms flocculent precipitates; and removing the flocculent precipitates to obtain sludge water, and adding potato water into the sludge water to ferment the sludge. The method for preparing various fertilizers by using the treated industrial sludge comprises the following steps of: preparing a powdery biological bacterial fertilizer by taking the sludge water obtained from the treated sludge as a raw material; and preparing a granular organic fertilizer and a fertilizer for changing saline and alkaline lands into fertile farmlands by taking the powdery biological bacterial fertilizer as a raw material. The industrial sludge treatment method has low cost and does not cause secondary pollution to the environment. The biological bacterial fertilizer and the granular organic fertilizer which are produced by the invention are used in lands of various areas, the yield is improved by 15 to 20 percent; and the fertilizer for improving the saline and alkaline lands has extremely obvious saline and alkaline transformation effect.

The present invention discloses a preparation method for high-fiber recombinant asparagus chips, and belongs to the deep processing field of fruits and vegetables. The asparagus chips use discarded scraps of old stems and old roots from asparagus production enterprises as raw materials, and are prepared by the following steps: pre-treating the raw materials, blanching the materials in hot water, preserving color, conducting beating, mixing the materials with adjuvant materials, cooking the mixture for a short time, placing the mixture on plates, drying the mixture under vacuum by two section-type microwave to a moisture content of 10% -15%, drying the mixture by short- and medium-wave infrared method under vacuum to a moisture content below 5%, and packaging the mixture to obtain the end products. The dietary fiber content of the asparagus chips is 8.35% - 10.27%, and every 100g of the chips contains flavonoids 12.73-16.86 mg, polysaccharide 9.34-11.28 mg. The preservation rate of chlorophyll is 70% to 75% after processing, and the chip breaking force is 1123-1443 g. The preparation method provides a novel method for taking full advantage of asparagus scraps, and the microwave vacuum drying and the short- and medium-wave infrared vacuum drying have advantages of quick drying, low temperature and higher nutrient retention rate, etc. The asparagus chips are high in cellulose content, rich in flavonoids, polysaccharide and other active substances, crispy and delicious in taste and high in nutritional value. Therefore, the asparagus chips are leisure crisps for people of all ages.

The invention belongs to the field of solid waste reclamation comprehensive utilization and particularly relates to a soil conditioner prepared from sludge and a preparation method thereof. The soil conditioner is prepared from river and lake bottom mud, conditioner, medium sand, agricultural and forestry residues, biological manure and plant ash, wherein the conditioner is 5% to 8% of the mass of the river and lake bottom mud, the medium sand is 5% to 10% of the mass of the river and lake bottom mud, the agricultural and forestry residues are 5% to 10% of the mass of the river and lake bottom mud, the biological manure is 1% to 5% of the mass of the river and lake bottom mud, and the plant ash is 1% to 3% of the mass of the river and lake bottom mud. The soil conditioner prepared from sludge disclosed by the invention achieves resource utilization of sludge, also fully utilizes sludge, tailings or river and lake sand, tailing sand, pipe network sand and agricultural and forestry residues at the same, achieves the purpose of treating waste through waste, avoids solid waste landfill, land occupancy and secondary pollution, reduces engineering cost of land reclamation, landscaping, forest land plant and the like and is beneficial to ecological environment; in addition, the river and lake sand, the tailing sand, the pipe network sand and the agricultural and forestry residues are separated and sorted from pipe network sludge.

The invention discloses a rapid production method of flavored pickled vegetables. The rapid production method comprises the following steps: selecting raw materials, carrying out ultrasonic salting, carrying out lactobacillus fermentation, blending with flavor condiments, enabling the vegetables to be tasty by ultrasonic waves, and weighing and packaging the product. The rapid production method is simple in production process, easy to control and suitable for industrial production; the pickled vegetable product is delicious, tender and crispy, has a moderate salty and sour taste and has a nourishing nutrition; the used ultrasonic treatment not only accelerates the speed of salting and enabling the product to be tasty and shortens the needed time for processing, but also can also prevent nitrite from being generated, so that the content of nitrite is reduced and the safety of the flavored pickled vegetables is improved.

The invention relates to a processing method of hot wind coupling biodrying for domestic waste, and belongs to the field of processing of domestic waste. The processing method comprises staged heating domestication and hot wind coupling inoculation drying. Staged heating is carried out from 35 DEG C to 50 DEG C for domestication to promote microbial community succession, and high-activity materials are obtained through domestication for 3-4 days. In a process of hot wind coupling inoculation drying, hot wind quantity is regulated according to temperature feedback, the material temperature is maintained in a range of 50-60 DEG C, and the process is stably performed. Through a joint action of heat production through biological fermentation and hot wind, high-speed dehydration of waste is realized, the moisture content of the final waste is reduced to lower than or equal to 25%, and the heat value is increased to 114%. Therefore, the waste is convenient for incineration and resource utilization. According to the method, biodrying is divided into two processes for continuous cooperative operation, and the reaction period is effectively shortened. Efficient heat transmission is conducted through hot wind, and the drying efficiency is greatly increased. The domestication and inoculation processes are simple to operate, the operation cost is low, and the period is short. The method can be taken as an effective approach for drying domestic waste.

The invention relates to a spiral extruding filter, which mainly comprises a motor and a filter cartridge. A spiral shaft runs through the inside of the filter cartridge and connected with an output shaft of the motor; the filter cartridge is provided with a discharge opening and a feeding opening; the spiral shaft is provided with at least one intermittent spiral shaft vane; the filter cartridge at the intermittent part of the spiral shaft vane is fixedly connected with a cylinder; and the cylinder is provided with a baffle plate which is arranged between the intermittent spiral shaft vanes. The spiral extruding filter has the advantages of making materials in the filter cartridge bear higher pressure, improving the filtering speed and improving the production efficiency. Compared with the common spiral shaft, the spiral vane has one or more intermittent parts; the spiral shaft has no push force on solid phase materials at the intermittent parts, so the solid phase material can be accumulated in the filter cartridge, and the materials can continuously move forward by only using subsequent materials to apply larger push force on the materials. The larger push force can accelerate the dehydration of materials.

The present invention relates to methods for the separation of materials from heterogeneous fluids and provides a means of effecting stimulant-sensitive flocculation and consolidation of solid suspensions within a liquid medium. Specifically, the present invention provides a method of controlling the state of a suspension of solid particles in a liquid, including applying to the suspension a stimulus adapted to control inter-particle forces between the solid particles. The stimulus is reversibly operable to control attraction and / or repulsion. Means of consolidating a sediment bed and of separating the resultant liquids-rich and solids-rich phases are also within the ambit of the invention.

The invention belongs to chemical materials and mainly relates to clay-based xanthogenate, and a preparation method and application thereof. The invention provides a clay-based xanthogenate compound. The other purpose of the invention is to provide the preparation method and the application of the clay-based xanthogenate. The clay-based xanthogenate compound and the preparation method thereof are characterized in that the compound is formed by alkalifying various mineral clays and then carrying out modifying or grafting reaction by adding carbon disulfide; and the method is simple, strong in operability, low in cost and easy for large-scale production, popularization and application. More particularly, the clay-based xanthogenate compound provided by the invention can be used as novel high-efficient heavy metal ion coagulant and can be applied in the fields, such as waste water treatment, soil remediation, wet-process metallurgy, environmental protection, ecological construction and the like, thus, the clay-based xanthogenate compound has the characteristics of simple and easy operation, rapidness, convenience, high metallic ion removing rate, easy solid-liquid separation and the like. The clay-based xanthogenate compound is an environment-friendly functional material and also has a wide application prospect in other fields.

The present invention relates to dirty oil dewatering process, and is especially ultrasonic treatment process of dewatering dirty oil in refinery and oil field to recover oil. Water containing dirty oil is first ultrasonic treated in ultrasonic treater with ultrasonic field of standing wave and traveling wave before being oil-water separated in a heat deposition tank, or water containing dirty oil is oil-water separated in a heat deposition tank with standing wave and traveling wave ultrasonic treater. The technological process adopts physical demulsifying process to dewater, has high dirty oil adaptability, no influence of dirty oil property, fast oil-water separation, high dewatering rate, and low operation cost. The present invention is significant in dirty oil recovering and reducing environmental pollution.

The invention discloses a biomass fuel based on sludge, straw and raw coal, a preparation method of the biomass fuel and application of a fuel slag, and belongs to the field of resource utilization of solid waste. The biomass fuel is formed by mixing, pressing and molding the sludge, the straw and the raw coal; and the weight ratio of the sludge, the straw and the raw coal is (1-3): (1-3): 3. The preparation method comprises the following steps of: adding limestone to the dehydrated sludge subjected to application of an aluminum coagulant, wherein the mass percentage of the limestone in the sludge is 1 to 3 percent; mixing the sludge and the straw to aerobically compost; mixing the raw coal with the mixture of sludge and straw, pressing and molding to obtain the biomass fuel. After the biomass fuel disclosed by the invention is burnt, the maximum absorption capacity of the slag exceeds 25g / Kg and can be used as substitutes of filler materials for artificial wetlands. According to the biomass fuel based on sludge, straw and raw coal, the preparation method of the biomass fuel and the application of the fuel slag, water in the raw material can be hydrated quickly, heavy metals can be passivated, the emission of SO2 in combustion of the raw coal can be reduced, and the burnt slag of the biomass fuel has high contents of calcium, aluminum and Ferrum with strong absorption capacity to phosphor and can be used as a phosphorus removing agent during sewage treatment.

The invention provides a processing method for drying leaf-silk in a grading way and equipment thereof; the method comprises two process steps: a first stage is a fluidization drying stage and the hot air drying temperature is controlled at 110 DEG C to 160 DEG C, so as to lead leaf silks to be dehydrated to 15 percent rapidly; a second stage is a roller silk drying stage, the temperature of roller wall is controlled at 60 DEG C to 100 DEG C, and the leaf silks with 15 percent of water content is dried to about 12 percent; the equipment comprises a fluidization drying functional area and a roller silk drying functional area; the fluidization drying functional area comprises a vibration fluidized bed and a wind-collecting guide cover arranged above the vibration fluidized bed; the roller silk drying functional area comprises a silk drying roller, the material inlet of the silk drying roller is communicated with a vibration tank. The invention can effectively utilize different drying characteristics of leaf silks in the constant-speed drying stage and speed-reduction drying stage, so as to improve the filling value of the leaf silks on the premise of not improving the processing temperature of the leak silks; meanwhile, aroma loss of the leaf silks is reduced in the drying process.

The present invention discloses a coal quality improvement apparatus for microwave low temperature dehydration and desulfurization. The apparatus comprises a continuous tunnel transportation device (1), a coal transportation belt (2), microwave line chambers (3), energy reclaiming ports (4) installed on the top of the microwave line chambers (3), and microwave leakage inhibition devices (5) installed on both ends of the microwave line chambers (3), wherein microwave energy of a continuous wave magnetron enters the microwave line chamber (3) through the energy reclaiming port (4), the upper parts of the microwave line chambers (3) are provided with pumping discharging ports (6), the bottom parts of the microwave line chambers (3) are connected with an inflation device (7) of protection air, and a plurality of the microwave line chambers (3) are continuously combined to form a microwave combination chamber. The coal quality improvement apparatus of the present invention has characteristics of reasonable structure design, high production efficiency, strong security, wide application range, concurrent performing of dehydration and desulphurization treatments, and high coal quality.