184results about How to "Reduce operation and management costs" patented technology

The invention discloses a method for managing town black and olid river pollution in situ by utilizing biological repair technology, which takes the steps and measures of aerating and oxygenizing in riverway, adding a complex microbial agent, biologically repairing bottom sediment, arranging a bio-nest system and the like, so as to control and eliminate the exogenous and endogenous pollution of the river, purify the water quality of the river, improve the self-purification ability of the water body and achieve the purpose of eliminating black and olid. The method does not need to build structures in the riverway or lead the river water out of the riverway to be treated, or dredge the bottom sediment in the river, therefore the method is generally applicable to incomplete sewage interception and dredging or the rivers which can not be intercepted sewage or dredged temporarily, and the in situ treatment to the riverway which is affected by tide and has complicated fluid variation. Therefore, the method which can lead the water body to recover normal ecological function provides the practical, economic and convenient treatment method for various town black and olid rivers.

The invention relates to a subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation, composed of drop water aeration subsurface flow constructed wetlands in one stage or multistage series. Each stage of drop water aeration subsurface flow constructed wetland comprises a bed body, an inflow barricade, an outlet barricade and a drop water baffle; wherein a plurality of deflectors, gravel fillers and emergent aquatic plants are arranged in the bed body between the inflow barricade and the outlet barricade. The invention is even in water distribution, small inwake space and uniform in water impact, residence time of sewage in the bed body is extended, blocking is difficult, thus being beneficial to improving effluent quality and biodegradation of microorganism on nutrient such as nitrogen, phosphor and the like in the sewage, and construction and running cost is low. The invention, under the joint action of the effects, can effectively degrade pollutant of urban and town domestic sewage, a small amount of industry waste water and farm drainage and is applicable to mountain land and hilly country with certain gradient.

The invention discloses a reclaimed water treatment system combining an upflow aerating biological filter with horizontal underflow artificial wetland. The system consists of the upflow aerating biological filter and the horizontal underflow artificial wetland; the upflow aerating biological filter comprises a water inlet guide tube positioned at the bottom of the filter; a filter plate, a supporting layer, an A section filler area, a B section filler area and a water outlet area are sequentially arranged above the water inlet guide pipe; a communicating water pipe is mounted on the water outlet area, and communicated with a regulating tank of the horizontal underflow artificial wetland; an aerator pipe is led out of the supporting layer; the regulating tank and a matrix area parallel to the regulating tank are arranged at the lower layer of the horizontal underflow artificial wetland; the matrix area sequentially comprises a macadam area, a steel slag area, a zeolite area and a water outlet gravel area from left to right; the water outlet gravel area is equipped with a water outlet pipe; and a soil covering layer and aquatic plants are arranged at the upper layer of the horizontal underflow artificial wetland. With the adoption of the system, on-site treatment and utilization of sewage are achieved; the sewage treatment process flow is simplified; and operation and management costs are lowered.

The invention relates to the technical field of land improvement, in particular to a quick saline-alkali land desalting system method by means of concealed-tube irrigation and drainage. The method includes adopting a series of technical measures including ditching and dike enclosing, salt-drainage concealed-tube laying, irrigation concealed-tube laying, deep scarification and cracking, fresh-water basin irrigation, salt-water forced drainage, continuous irrigation and drainage, annual salt drainage and the like in heavy saline-alkali land near seashores to realize quick saline-alkali land desalting. The quick saline-alkali land desalting system method has the advantages that underground water level can be lowered through ditching and field raising, salt in the land can be washed through basin irrigation, the saline-alkali land can be desalted quickly through salt-water forced drainage, and annual salt drainage is realized and salt accumulation in the land is avoided by keeping lower water levels of salt drainage ditches, so that one-step quick desalting is realized, desalting effect is maintained for a long time, and improvement of the saline-alkali land is realized quickly.

The invention discloses a urea-solution-based SCR (selective catalytic reduction) flue gas denitration process and device. According the process, pyrolysis air is pumped from the outside or a second air channel of a boiler, then is pressurized by a first fan and heated to 350-700 DEG C by a pyrolysis air heater arranged in a boiler hearth or a tail air channel, and the heated pyrolysis air enters a pyrolysis reaction air channel together with fresh air; urea solution is sprayed into the pyrolysis air channel by an atomizing spray gun and the atomized urea solution is pyrolyzed into ammonia gas in the pyrolysis air channel; and after being discharged out of the pyrolysis air channel, the ammonia gas is sprayed into boil flue gas via ammonia spraying grilles to participate in the SCR reaction in an SCR reactor arranged in a tail flue of the boiler. the urea-solution-based SCR flue gas denitration process and device have the advantages of high safety, simple structure and easiness in implementation.

The invention discloses a method for removing arsenic by loading titanium dioxide with an activated carbon fiber hydrothermal method by means of photoelectrocatalysis oxidation. The method comprises the following steps of: oxidizing the trivalent arsenic, which is high in toxicity and difficult to treat, pentavalent arsenic which is easily treated by photoelectrocatalysis oxidation treatment, and completely removing the pentavalent arsenic by adsorbents which can strongly absorb the arsenic, namely titanium dioxide, iron oxide or activated aluminium oxide and the like. The method disclosed by the invention is simple in technology, convenient to operate, low in cost, and free from the generation of sludge residue, the arsenic in water can be effectively removed, an activated carbon fiber photoelectrode can run for a long term, and can be used at a large area and a large scale without changing, and the outlet water quality fulfills the national standard, so that the method is suitable for treating the drinking water and the high-arsenic waste water.

The invention discloses a novel public-bike stereo garage system. The novel public-bike stereo garage system comprises a stereo garage, public bikes and parking desks for locking the public bikes. The multiple parking desks are arranged in a layered mode in the height direction of the stereo garage, and a plurality of bike locking mechanisms are arranged on beams of each parking desk in the length direction of the parking desk; fixing stalls corresponding to the multiple parking desks are arranged at the corresponding height positions of the stereo garage, and all the fixing stalls are provided with stall thrusters to assist the parking desks in entering and exiting; the parking desks are in tray shapes, the two ends of the parking desks are movably connected with guide columns arranged on the stereo garage, and the parking desks are driven by lifting driving devices arranged on the guide columns to move up and down along the guide columns; the public bikes are locked on the parking desks through the locking mechanisms. By means of the novel public-bike stereo garage system, the use rate of space is increased, and meanwhile the efficiency of operation management is improved.

The invention relates to a large-scale open channel water level automatic control method based on storage capacity dynamic regulation. The method comprises the steps of determining a feed-forward flow regulating value; determining whether the feed-forward flow regulating value needs to be subjected to feedback correction or not; calculating a feedback correction value of a feed-forward control flow; calculating a flow regulation target value; calculating the actual opening of a gate; adjusting the opening of the gate. The method disclosed by the invention adopts a feed-forward flow control mode and fully considers the influences of division flow and water level dead areas for controlling a water surface profile of the whole channel section, so that water level fluctuation at local points can be flattened and filtered out, the sensitivity to movement dead areas of the gate is reduced, and accordingly frequent operation for the gate is reduced. Storage capacity compensation conditions required by stable water delivery are conveniently realized, so that the phenomenon of water level overswing is effectively reduced, and stability can be more quickly realized. The control principle is simple and clear and easy to realize and grasp, the influences of various disturbance factors can be effectively avoided, the operation and management cost of an open channel is reduced, the water delivery safety is ensured, and the water delivery efficiency is improved.

The invention discloses a combination type treatment method for pharmaceutical waste water, which belongs to the technical field of water treatment. The method comprises the following steps of: first, improving the biodegradability of high concentration of waste water by adopting an efficient pretreatment technology, and finally removing a main pollutant COD (Chemical Oxygen Demand) in the waste water until reaching the standards. The invention has the advantages of stable running, flexible operation, convenience for maintenance, and strong impact resistance capability and strain capability for the variation of water inlet quantity and water quality.

The invention discloses a down-flow biological aerated filter with double-layer filter media and a method to apply the filter for the processing of raw water. The filter is characterized in that a large-particle filter layer, a small-particle filter layer and a gravel layer are arranged in order below a backwash effluent groove in the biological aerated filter; processing aeration devices are arranged in the gravel layer; the particle size of filter media at the large-particle filter layer is from eight to sixteen mm with a smaller filter media density than the small-particle filter layer; the particle size of filter media at the lower small-particle filter layer is from four to eight mm. For the method, raw water enters into the filter through a water distribution channel, flows downward through the lightweight large-particle filter layer and small-particle filter layer and the gravel layer, and flows out through a filter head arranged at a filter plate. The down-flow biological aerated filter with double-layer filter media has the advantages of small water head loss and long backwash cycle, is a economical and efficient method in the biological pretreatment technology for micro-biological polluted drinking water sources.

The invention discloses an HY type dry distillation furnace which is characterized by comprising a plurality of dry distillation subunits, wherein each dry distillation subunit comprises a charging device, an oil gas discharge device, a dry distillation device, a heating device and a coke discharge device; materials are subjected to dry distillation by using a combined radiation heat exchange and convection heat exchange mode in the furnace; gas generated in a dry distillation process is used as a dry distillation heat source, and the dry distillation heat can be self-balanced; the materials are directly heated by virtue of radiation of a furnace wall of a combustion chamber, and a heat carrier does not need to be subjected to secondary heating and long-distance conveying; a dry distillation gas outputting device is arranged in the furnace, so that the gas in the furnace flows smoothly; coke is discharged by a dry method. The dry distillation furnace is high in heat utilization efficiency, low in outlet gas quantity, low in water consumption, high in oil yield and large in daily treatment capacity capable of being more than 6,000 tons, and is suitable for low and medium-temperature dry distillation of the materials such as oil sand, oil shale, coal and the like, and suitable for oil refining and dry distillation of large particle materials and small particle materials of less than 15mm.

The invention discloses a process and a device for refining oil by dry distillation of oil shale. The process is characterized in that methane generated in the dry distillation process of the oil shale can be repeated used as a hot carrier in the dry distillation of the oil shale. The retort for realizing the dry distillation oil refining process is characterized in that: the retort has a vertical round-square structure, namely the cross section of the upper part is round, the cross section of the lower part is square, and the inside diameters of the upper and lower parts are the same; and array umbrellas, a herringbone baffle plate, a device shaped like a Ding(ancient cooking vessel of China) or in an Asi structure, an air distribution and material distribution tracery wall, a coke discharging tank, a cooling water jacket, a water seal pool, a coke pushing machine and a scraper conveyor are arranged in the retort from top down in turn. The daily handling capacity of the retort is 500 to 1,000 tons. The invention is suitable for refining oil by dry distillation of oil shale with low methane content, low solid carbon content, low water content and a particle size of 5 to 75 milliliters, and the recovery rate of the oil is 85 to 90 percent.

The present invention relates to water treating technology, and is especially one kind of rotary cage type biological suspended stuffing sewage treating method and apparatus. The apparatus includes central shaft, rotary cage, inner and outer vanes, suspended stuffing, bearing and bearing cover plate. The central shaft is connected to the rotary cage to form rotating pair, the bearing is located with the bearing cover plate and screws, the suspended stuffing is filled into the rotary cage, and the inner and outer vanes are screwed to peripheral wall of the rotary cage. The inflowing sewage drives the outer vanes to rotate the rotary cage and mixes with the suspended stuffing and central aerating airflow, the inner vanes of the rotary cage form homogeneous gas, liquid and solid fluid to make sewage well contact with biological membrane on the stuffing and aerating airflow for biodegradation and airflow oxidation decomposition of organic pollutant and purification of sewage.

The invention relates to an associated gas recovery process in the oil field oil extraction process, in particular to an oil field well casing gas recovery device and an oil field well casing gas recovery process. The process is characterized in that: when a part of oil from a well mouth is connected with an inlet port pipeline of a synchronal rotary compressor through a first-path pipeline with a throttle valve, a ball valve and a filter, the part of the oil from the well mouth of the first-path pipeline enters the synchronal rotary compressor to seal, lubricate and cool the synchronal rotary compressor, the other part of the oil is transported to a downstream pipeline under the action of an oil extractor, and the casing gas of a second-path pipeline is pressurized by the synchronal rotary compressor and is pressed into an oil pipe for transport so as to pressurize and recover the casing gas. The invention provides the oil field well casing gas recovery device and the oil field well casing gas recovery process which can effectively reduce the return pressure of the well mouth, improve oil extraction working conditions and reduce the energy consumption of the oil extractor.

The invention discloses a whole life cycle management method of equipment based on BIM. The specific steps are as follows: the shape, specification and position of each equipment are kept consistent with the site by processing the BIM model; the device in BIM model is numbered by using the data processing program based on the secondary development application program interface provided by Revit, so that the device number in BIM model is the same as the number of the actual device, and the number is regarded as the unique identification of the device; the BIM model is lightweight and then imported into the third-party software system; equipment information in the design phase and the construction phase is collected and associated with BIM model equipment number with unique identification; the third-party software system interfaces with IBMS and collects the running information of the equipment; equipment repair, maintenance, patrol inspection process can be carried out in the third-party software system, but not limited to the collection of equipment maintenance information; in the third-party software system, all the information of each equipment is summarized according to the unique identification of the equipment, and the equipment account is established.

The invention relates to a large-caliber hot water pipeline uncompensated direct burying method which comprises the following steps: (1) the temperature of media supplying heat and pressure in a pipeline are set in a certain range; (2) the depth of the direct burying of the pipeline is determined by a burying path, and a groove is excavated; (3) the bottom of the groove is tamped and leveled; (4) insulating tubes are processed, prefabricated and directly buried in a factory; (5) the prefabricated and directly buried insulating tubes are placed into the groove; (6) all prefabricated and directly buried insulating tubes are mutually connected, a compensator does not need mounting in fixed space; (7) the groove is backfilled at environmental temperature, and the pipeline does not need preheating before backfilling. The pipeline burying method is simple, and the pipeline does not need being mounted with a compensator in fixed space to absorb expansion with heat and contraction with cold caused by the temperature rise of hot water. The invention reduces the accident potential of a heat supply pipe network, and has the advantages of low daily maintenance work load, waterproof performance, good anticorrosion performance, low heat loss, long service life, short construction period and low construction investment. The invention is applicable to burying pipelines with the nominal diameter of DN600-DN1200.

The invention discloses a method and a device for treating organic polluted soil by a two-section-type indirect thermal desorption technology. The method comprises the following steps: carrying out predrying and dehydrating moisture in organic polluted soil at low temperature so as to enable the moisture content to be reduced to be less than 5%; heating the predried organic polluted soil in a thermal desorption device indirectly so as to obtain altithermal soil and organic pollutant gas; directly introducing the organic pollutant gas into a combustion heating device to be combusted together with fuels at high temperature so as to achieve the complete innocent treatment of organic pollutants; cooling the high-temperature soil indirectly by a hot soil cooling device, recycling the altithermal soil to sense heat so as to preheat air for the fuel combustion for the combustion heating device, thereby obtaining raw materials for building materials for further deep processing. The technology is simple; the investment is low; the running management expense is low; the energy source efficiency is high; tail gas pollution and any other environment problem are not generated; the technical economy is feasible, and the energy conservation and environment-friendly benefit is obvious; the concept of clean production and circulation economy is shown fully.

This invention relates to a method for purifying eutrophic water body by using water plant, particularly duck-weed and polycultured with other water plants. The adsorption, absorbing and biochemical reaction of said water plants are used for removing nitrogen, phosphorus and other pollutants. The plants occupies 70-90% of the surface of the water body. This invention has advantages of: simple operation, low management cost, obvious treatment effect, no secondary pollution, the water plants can be harvested as resource, being of a popularized treatment method for eutrophic water body.

The invention provides a treatment method for wastewater produced during flue gas desulfurization adopting a limestone / lime-gypsum method. The treatment method comprises steps as follows: (1), lime, sodium sulfate, a heavy metal precipitant, a flocculating agent and a coagulant are added to to-be-treated desulfurization wastewater, precipitation is performed, and acid is added to effluent for neutralization; (2), the effluent in the step (1) is subjected to electrodialysis treatment through a homogeneous-phase monovalent ion exchange membrane, and contributing water containing NaCl and concentrated water containing CaSO4 are formed and are recycled respectively. The invention further provides a treatment system for the wastewater produced during flue gas desulfurization adopting the limestone / lime-gypsum method. According to the treatment method and the treatment system, zero emission is realized, the process is simple, the treatment efficiency is high, waste recycling is realized, an available industrial product can be directly obtained, the agent cost, the equipment cost and the energy consumption are lower, and accordingly, the overall operation and management cost is obviously lower than the cost of a conventional technology.

The invention discloses a communication protocol adapter-based integrated terminal access system structure, which comprises a terminal equipment layer, a communication layer and an application layer, wherein the terminal equipment layer, the communication layer and the application layer are arranged in turn from the bottom to the top based on SOA architecture, and connected in a message transmission mode. Further, the communication layer comprises a link abstraction layer for shielding data transmission differences of various communication channels and a communication protocol layer for shielding differences of various protocol type acquisition terminals. Furthermore, an adapter of the communication protocol layer is connected with the application layer through multiple communication protocols. The structure realizes integration of single main stations so that the initial constructed professional system can conveniently perform data integration and application integration; and the initial invested field equipment can be completely and effectively connected to a new system, so repeated investment is avoided.

The invention relates to a data management and statistical analysis commercial intelligent platform. According to the platform, standard processing is performed on statement data of a user through a standard basic form, and after calculation is performed through a designed calculation formula and a model, the statement data is displayed to the user in a figure and table form through a standard statistical index system; the user pertinently does daily management improvement work through a standard statistical index calculated based on basic data of a current company; or, the user presets a threshold corresponding to the index and an execution instruction, and after the index reaches the threshold, the platform automatically executes the preset instruction or pushes prompt information to theuser, so that semi-automatic or automatic operation of daily operation management of the company is realized. Through the platform, the working efficiency of daily operation management of the companyis improved, a company operation management risk is timely discovered and avoided, company operation management cost is lowered, and the profitability of the company is improved.

The invention belongs to the technical field of water treatment and particularly relates to a technique for in-situ remediation of high As groundwater, which is characterized in that the technique comprises the steps of: 1) conducting geological drilling at the working area, acquiring the accurate geological data and determining the position of the aquiclude from which water is taken; 2) conducting hydrogeological test and acquiring relevant parameters; 3) symmetrically arranging a liquid injection well and a gas injection well around a water pumping well or the center of the working area; 4) injecting ferrous chloride solution to the aquiclude from which water is taken through the liquid injection well and injecting oxygen to the aquiclude from which water is taken through the gas injection well; and 5) surveying the contents of As ions, iron ions, chloridions and dissolved oxygen, and when the content of As ions is less than or equal to 10 microgram / L and remains constant and neither of the contents of the iron ions and the chloridions exceeds the standard, stopping injecting ferrous chloride solution and oxygen. The method has the advantages of simple operation, low cost and good processing effect.

The present invention discloses a caffeine production wastewater treatment method, which comprises: respectively carrying out pre-treatment on water washing raw mother wastewater, primary chlorine extraction wastewater and methylating residue liquid wastewater, mixing untreated tea sodium wastewater, the pre-treated water washing raw mother wastewater, the pre-treated primary chlorine extraction wastewater and the pre-treated methylating residue liquid wastewater, adding the obtained mixture to an adjustment tank, adopting clear water to dilute, adding nutrients required by microorganism growth, sequentially carrying out hydrolysis acidification and aerobic biochemical reaction, and discharging the wastewater meeting the standard. The caffeine production wastewater treatment method has the following beneficial effects that: the wastewater treatment effect is substantially improved, the treatment process is simple, the management operation is convenient, and the operation management cost is low.

A managed entity view framework and methods for obtaining configuration information, diagnostic information, and statistic information in support of operations management actions is presented. The method includes validating a managed entity viewing script template for execution on a target managed entity, retrieving target managed entity specific template parameter values, populating the managed entity viewing script template to derive a managed entity viewing script therefrom, and submitting the script for execution on the target managed entity. Advantages are derived from a reduced need to model, and maintain models of, managed communications network entities, therefore reducing the need update managed communications network entity model data including managed communications network entity information. Instead managed entity viewing scripts are used to retrieve current information from corresponding target managed communications network entities whenever required. Advantages are also derived from reducing the need for extensive operations management personnel training providing ease and speed in selecting CLI commands scripts to obtain information without manually logging in on target management entities. Further advantages are derived from provides an improved information collection means for diagnosis. Upon receiving a trap at the NMS from a managed communications network entity, trap-directed managed entity viewing scripts are autonomously submitted for execution on the managed communications network entity to collect information for problem isolation and eventual resolution. These benefits lead to reduced operations management costs for service providers managing communications networks.

The invention discloses a handheld positioning and polling machine for a power grid machine room based on an RFID (radio-frequency identification device) technology. The handheld positioning and polling machine comprises an anti-drop housing, wherein a central processor, a memory, a data communication interface, a display screen used for scanned information displaying machine room equipment, an input unit used for inputting instructions and data, a power module used for providing a power supply for the polling machine, and a radio frequency label scanner used for reading RFID labels arranged on the machine room equipment, wherein the memory, the data communication interface, the display screen, the power module and the input unit are all connected with the central processor; the radio frequency label scanner is used for scanning equipment information in UHF (ultra high frequency) labels on the machine room equipment and transmitting the equipment information to the central processor; the central processor is used for processing the obtained equipment information. The handheld positioning and polling machine has the advantages of conveniently polling and positioning the power grid machine room equipment, reducing the running and management costs of the machine room and the like.

The invention discloses a unified authentication and authorization scheme, which is composed of an authorization module, a resource module and a client sdk, wherein the authorization module is mainlyresponsible for client verification, user information authentication and issuing of a JWT token after successful authentication; the resource module is mainly responsible for managing open resources by the server; the client sdk cooperates with the server authorization module to complete an authentication and authorization process, obtains the JWT token issued by the server, obtains the user information, and can obtain the specified open resources of the server through the JWT token. A barrier between systems developed based on Java in an enterprise can be broken through, unified management and control of basic information such as user authority are achieved, and the operation management cost of the enterprise is reduced. The access of each subsystem and the access of an external system are finely controlled through a unified authentication and authorization center, so that the credibility of the access system is ensured; basic information sources such as user authority are consistent,communication of all systems in an enterprise can be achieved, and the use cost of staff is reduced.

The invention relates to a low-temperature pyrolysis method for pulverized coal and oil shale powder and an external heating vertical type descending low-temperature pyrolysis furnace so as to solve the problem that pyrolysis can not be carried out on powder in the prior art. The furnace is composed of a drying system, a heating pyrolysis system, a dust removing system, an oil-gas separating system and a coke quenching system; at first, the drying system is utilized for drying and preheating the pulverized coal or the oil shale powder with the diameter smaller than 0.6 cm to the temperature of 200 DEG C; the heating pyrolysis system with clean coal gas as fuel is utilized for indirectly heating the dried and preheated pulverized coal or oil shale powder to the temperature of 550 DEG C-600 DEG C to dissolve and separate semi-coke, oil gas and heating gas out; the dust removing system is utilized for removing dust in the oil gas and the heating gas; the oil-gas separating system is utilized for separating the clean coal gas and coal tar; finally, inert gas generated by the drying system and the coke quenching system are utilized for carrying out coke quenching on the semi-coke produced by the heating pyrolysis system. The furnace has the advantages that the pulverized coal and the oil shale powder can be fully utilized, safety performance is high, the energy efficiency ratio is high, the gas production rate is large, the gas production quality is good, the production capacity of the single furnace is high, and the production cost is low.

The invention relates to an integrated gas retort integrating heating of a heat carrier and dry distillation of materials into the same one dry distillation unit. The integrated gas retort is characterized in that smoke gas is used as dry distillation heat carrier for indirectly heating materials; the gas retort is formed by combining a plurality of dry distillation sub units. Each dry distillation sub unit is independent, one combustion chamber corresponds to one dry distillation chamber to form one dry distillation sub unit, the upper parts of retorts comprising a plurality of dry distillation sub units are communicated, the two dry distillation sub units are separated by a smoke gas chamber, and the lower parts share one water seal tank and a tar exhaust device. The actual daily capacity of the gas retort can achieve more than 6000. The integrated gas retort is applicable to low-temperature dry distillation oil refining of materials oil sand, oil shale, coal and the like. The integrated gas retort is applicable to dry distillation and oil refining of small-particle materials, as well as various qualities of materials with low gas content, low fixed carbon content and high moisture content, and the oil recovery rate of the gas retort can achieve about 90%.

The invention discloses a process and a device for dry distillation refining of oil shale with low gas content, low fixed carbon content and low water content. The invention is characterized in that: tiny dust in the oil shale is removed by a vibration deduster; gas generated through dry distillation serves as a heat carrier for dry distillation refining of the oil shale; and the gas is heated and cycled by an external combustion regenerative heating furnace. The process flow comprises the following steps of: crushing and screening; grading and warehousing; purifying and dedusting; performing dry distillation refining; condensing and collecting oil; heating the gas; and desulfurizing flue gas. The device for dry distillation refining is an optimized combination of general equipment and proprietary equipment, and the oil recovery rate is over 85 percent.