467results about How to "Easy to intercept" patented technology

The invention discloses an emergency medical rescue wireless mobile information management method and a platform, and the central content of the method is built on the basis of a regional monitoring information wireless network management system in a wide area. The invention comprises a handheld PDA device, a mobile monitoring information management system and an emergency rescue dispatching information management system, wherein, the handheld PDA device is used for rapidly inputting and transmitting the basic conditions and illness information of patients on the incidence scene; the mobile monitoring information management system belonging to the mobile ambulance onboard part is in charge of the acquisition and transmission of the monitoring information, the basic information of patients and treatment and rescue information, voice and video instant messaging, GPS location and real-time traffic enquiries; and the emergency rescue dispatching information management system arranged in the emergency rescue dispatching management center in fixed places is in charge of dispatching management and real-time monitoring of the comprehensive information. In the invention, the information of the emergency rescue process is digitalized; the rescue medical information of patients from different regions such as the incidence site, transport process, reception hospital, rescue in hospital, dispatch and control and the like can be shared in real time and synchronously, thus building a new rescue mode in which the information runs first with the non-arrival of patients.

A method of operating a point-of-sale (POS) system (1), the POS system comprising a POS terminal (3) having a software module (17, 21) thereon for enabling a retailer to process transactions within a transaction environment, and a peripheral device (5, 7) in communication with the POS terminal (3), the POS system (1) further comprising a driver software module (40) installed between the POS terminal (3) software module (17, 21) and the peripheral device (5, 7), the method comprising: receiving, at the driver software module (40), data sent between the software module (17, 21) and the peripheral device (5, 7) in communication with the POS terminal (3); communicating with a further device (44, 60, 64) in dependence on the data received at the driver software module (40); receiving modified data from the further device (44, 60, 64); and outputting the modified data.

A rapid starting method of a membrane bioreactor completely-autotrophic nitrogen removal technology belongs to the municipal sewage processing and recycling fields. The starting method of a completely-autotrophic nitrogen removal technology in a membrane bioreactor (MBR) comprises the following steps: inoculating nitrated sludge of the aeration tank of a municipal sewage plant, and recovering the activities of sludge at normal temperature under low ammonia nitrogen of inlet water; reducing the aeration rate and gradually increasing the ammonia nitrogen concentration to successfully enrich ammonia oxidizing bacteria; and reducing the aeration rate, reducing DO, and inducing anaerobic ammonia oxidizing bacteria to successfully start the completely-autotrophic nitrogen removal technology. Problems comprising slow starting and strict sludge inoculation requirement of a completely-autotrophic nitrogen removal technology are solved in the invention, and the rapid starting method of the shortcut nitration in the MBR realizes the efficient ammonia nitrogen removal, and provides a way for the long-term efficient and stable running of the shortcut nitration in the MBR.

The invention discloses an operating method for a high-efficient anaerobic ammonium oxidation reactor. The method comprises the steps of (1) inoculating anaerobic granular sludge in an anaerobic reactor, the wherein the anaerobic granular sludge accounts for 30-90% of total volume of the reactor; and (2) taking nitrogenous simulating wastewater as reaction inflowing water, wherein the temperatureof the reactor is controlled to be in 18-37 DEG C; and in a reactor starting stage, remaining hydraulic power for 12-48h, adjusting reaction operating conditions according to concentration of ammonianitrogen and / or nitrite nitrogen, operating the anaerobic reactor for 30-150d, and forming high-efficient anaerobic ammonium oxidation granular sludge enriched with anaerobic ammonium oxidation bacteria. The method improves total nitrogen load of the reactor in a way that the load is increased gradually by lower load so as to be beneficial to stable increasing of domestication enrichment and nitrogen removing rate of the anaerobic ammonium oxidation bacteria, can effectively avoid matrix restraining of anaerobic ammonium oxidation and is beneficial to reducing process operating cost when the reactor operates under a room temperature condition.

The invention relates to a multi-hole foam glass carrier for a fast mass transfer biological fluidized bed and a preparation method and application thereof, which belong to sewage disposal technology. The multi-hole foam glass carrier is prepared by using waste glass as a raw material to be composited with volcanic rocks, coal ash, coal gangue, furnace clinker, iron powder, aluminum powder, binding agents, foaming agents, foam stabilizer and fluxing agents by weight, and multi-hole foam glass is obtained by stages of preheating, fast sintering, foaming, fast cooling and annealing. The preparation process of the multi-hole foam glass carrier is simple in route, easy to control and low in cost, and the prepared carrier is stable in performance, high in porosity, large in specific surface area, resisting in impact, good in mechanical performance, high in biocompatibility, favorable to efficient fixing of the microorganism, and suitable to the fast mass transfer biological fluidized bed. The multi-hole foam glass carrier solves the problem that biological immobilization carriers in the prior art are easy to abrade, small in bio-film formation amount, low in mass transfer effects and the like in the fast mass transfer biological fluidized bed. The preparation method opens up new approaches for preparing the biological carriers, and fills blank spaces in using of foam glass materials in sewage disposal.

The invention relates to a process for manufacturing a water treatment ceramsite filter by waste gypsum generated in acesulfame potassium production, which is characterized by comprising the following steps: a) pre-treatment: cleaning, drying and dewatering the waste gypsum generated in the acesulfame potassium production; b) mixing and homogenizing: mixing the treated waste gypsum with flyash and biological sludge to serve as a base stock, wherein base stock comprises 40-60% of waste gypsum by mass, 20-35% of flyash by mass and 5-20% of biological sludge by mass; and adding 8-15% of clay by mass and 1-12% of pore-forming material by mass, and evenly mixing; c) pelletizing; d) expanding; and e) screening: crushing the expanded product into the ceramic product with the particle size of 3-15mm, namely obtaining the product in the invention. The ceramic filter obtained in the invention can be suitable for enterprises needing water treatment like sewage treatment plants and the like.

The invention discloses a hydrophilic carrier for microbial biofilm formation. The hydrophilic carrier comprises a hollow short tube, and a first concentric ring and a second concentric ring which are sequentially concentrically arranged outside the hollow short tube, wherein the surface of the outermost second concentric ring is toothed; and the microbial filler is composed of the following components in parts by weight: high-density polyethylene, low-density polyethylene, white lime, Dow powder activated carbon, light calcium carbonate, maleic anhydride, dicumyl peroxide, gelatin, chitin, ferroferric oxide magnetic powder and manganese-zinc ferrite. The density of the microbial filler is 0.96-0.98 g / cm<3>. The hydrophilic carrier for microbial biofilm formation prolongs the contact time between microbes and organic matters, so that the organic matters are degraded quickly and thoroughly; and the biological oxidation can restore the surface adsorption capacity of the activated carbon.

The invention relates to an integrated sewage treatment device with high efficiency and low consumption and a treatment method, and belongs to the field of sewage treatment. The integrated sewage treatment device comprises a pretreatment unit, a multi-oxidation-deoxidation environment coupling biological reaction pond unit and a deep treatment unit sequentially connected. The multi-oxidation-deoxidation environment coupling biological reaction pond unit adopts a three-stage anoxia-aerobiotic alternating reaction pond filled with a circular composite glass ball porous microbial carrier. The deep treatment unit comprises a filter cloth dynamic film biological reaction pond and first and second dynamic films. Sewage is treated through the devices sequentially. The device provided by the invention cannot only remove carbon containing organic matters, but also has good nitrogen and phosphorus removal capacity.

The present invention relates to a donor radio access node (DeNB1) configured to wirelessly connect to, and to proxy operation of a source relay node (RN1), and further configured to forward upstream user traffic towards a serving gateway (S-GW1) during a handover of a particular mobile device (UE1) from a source cell (A) operated by the source relay node to a target cell (C) operated by a target radio access node (eNB2). In accordance with an embodiment of the invention, the donor radio access node comprises: —first forwarding means (FW1) for forwarding a sequence of upstream data packets (P1, P2, P3) from the source relay node to the serving gateway, which sequence of upstream data packets comprising upstream data packets up to a particular packet sequence number (Y−1), —second forwarding means (FW2) for forwarding a data transfer status message (SN STATUS TRANSFER) for the particular mobile device from the source relay node to the target radio access node, which data transfer status message comprising an information element (Y) indicative of the particular packet sequence number, wherein the donor radio access node comprises a forwarding controller (CTRL) coupled to the first and second forwarding means, and configured to interdependently control forwarding of the data transfer status message and of any pending upstream data packet (P2, P3) out of the sequence of upstream data packets that has not been yet validly forwarded to the serving gateway. The present invention also relates to a method for forwarding upstream user traffic towards a serving gateway during a handover.

The invention relates to the field of network safety, in particular to a safety network time synchronizing method and device. The method comprises the following steps: key agreement: acquiring a session key and a message authentication code by a client side through a session key request and a message authentication code request, and establishing mutual trust between the client side and a server; and time synchronization: implementing safety time synchronization by time synchronizing data frame interaction. The client side transmits a client side key request data frame to a server side; after receiving the client side key request data frame, the server replies a server session key responding frame to the client side; after receiving the server session key responding frame, the client side examines frame formats and contents, and acquires a session key; the client side transmits a client side message authentication code request frame to the server; after receiving the client side message authentication code responding frame of the client side, the server computes a message authentication code according to a session key and message contents and replies a server message authentication code responding frame to the client side; and after receiving the server message authentication code responding frame, the client side examines the frame format and content, and acquires the message authentication code.

The invention relates to a signal modulation method applied to the field of anti-interference and secure communication and discloses a signal modulation method based on weighted-type fractional Fourier transform and energy spreading transform, to solve the problem that a signal interception party adopts WFRFT (weighted-type fractional Fourier transform) and transform order tracking is relatively accurate, the anti-interception effect is poor when variable-parameter mixed carrier signals of multi-parameter fractional Fourier transform are adopted. The signal modulation method comprises the following steps of: 1, establishing an energy spreading transform matrix; 2, performing multistage tandem weighted-type fractional Fourier transform and pseudo-random interleaving process at a sending end; 3, processing a modulated sequence x through a channel cancellation technology (such as channel equalization, channel coding and decoding technologies and the like) to obtain a signal y to be modulated, and performing inverse transform on the signal y to be modulated by a signal receiving end to realize a demodulation process and restore an estimated value of a source information sequence. The signal modulation method disclosed by the invention is applied to the field of secure communication.

The invention discloses a method for rapidly starting an anaerobic ammonium oxidation reactor. With an up-flow anaerobic sludge blanket digestion adopted, the method comprises the following steps of: adding mixed sludge composed of anaerobic digested sludge and sludge of a secondary sedimentation tank of a sewage treatment plant into a reactor, then adding bamboo charcoal particles with the diameter of 3-5mm, specific area of 14.0-31.2m<2> / g, density of 750kg / m<3> and volume density of 520kg / m<3>; and under airtight and shading conditions, inputting simulated waste water into a reactor to carry out continuous culture starting, wherein operating conditions are that: temperature of the reactor is maintained to be 25-35 DEG C, pH of waste water is 7.0-8.0, hydraulic power retention period is 24-48 hours, and concentration ratio of simulated waste water ammonia nitrogen to nitrite nitrogen is 1: (1.0-1.5). The method disclosed by the invention is convenient to apply, has low cost, can greatly reduce starting time of the anaerobic ammonium oxidation reactor and has wide application prospect to low carbon nitrogen ratio waste water.

The apparatus comprises: mail receiving / delivering unit; general mail control unit; and anti-spam unit and mail database. The mail database pre-stores the template of spam and the template of legal mail; after receiving the request of receiving and delivering mail, the mail receiving / delivering unit sends the mail to be received or delivered to the anti-spam unit that compares said mail with the template of spam and the template of legal template, and according to the comparison result, marks the mail with the type label, and sent the mail to the general mail control unit to make control process, or returns the mail to the mail receiving / delivering unit.

The invention discloses an ecological floating bed suitable for a high-sediment large-flow rate water body. The ecological floating bed is formed by interconnecting two floating bed units, wherein each floating bed unit comprises floating bed fixing rods, hollow PVC tubes, wave eliminating rafts and a gauze; a plurality of hollow PVC tubes are horizontally arranged and fixed by the floating bed fixing rods so as to form a floating raft; the wave eliminating rafts are arranged below the two ends of the floating raft respectively; the gauze in which hollow columnar polyvinyl chloride short corrugated tube packing is packed is hung below the floating raft; and the gauze is positioned below the wave eliminating rafts. The ecological floating bed can treat the water body which contains high sediment and high phosphorus and nitrogen concentration, is suitable for a river with large flow rate, can build a landscape effect without influencing shipping, and can produce part of economic benefits.

The invention discloses a load-bearing control system in EPC (evolved packet core) based on DPI (depth package inspection). The system comprises a DPI module, a PCRF (policy and charging rules function) and a PGW (packet gateway). The DPI module is used for identifying service content through the DPI, acquires information used for service quality QoS decision-making of a service, and sends the information to the PCRF. According to a pre-established control policy and DPI module report information used for QoS decision-making, the PCRF is used for the QoS decision-making, and sends determined QoS rules to the PGW. When exchanging data with UE (mobile terminal), the PGW sends all exchanged data with the UE to the DPI module for recognition. According to the QoS rules sent by the PCRF, bearing control process to the service is initiated. The invention further discloses a load-bearing control method in the EPC based on the DPI. With the system and the method, load-bearing control to different PS (packet domains) services is achieved, intercepting and visiting control to the different PS services can be achieved, and realization cost is lower.

The invention provides an underground coal mine dust collecting device and belongs to the dust collecting device. One end of a pressure wind inlet of the dust collecting device is provided with a wind inlet, and the other end of the pressure wind inlet is provided with a first inner nozzle. The wind pressure inlet is inserted into a one-level ejector which is provided with a first dust suction inlet. The first dust suction inlet is located on a position of a first receiving room. The one-level ejector is provided with the first receiving room. A first mixing room is arranged at the front end of the first receiving room. A second inner nozzle is arranged on the end portion of the first mixing room. The end of the first mixing room is inserted into a two-level ejector provided with a second dust suction inlet, a water inlet, a dedusting agent inlet and a nozzle. The two-level ejector is provided with a second receiving room. A second mixing room is arranged at the front end of the second receiving room. The second dust suction inlet is arranged on the position of the second receiving room. The water inlet and the dedusting agent inlet are arranged on the position of the second mixing room. The nozzle is arranged at the front end of the second mixing room. The underground coal mine dust collecting device is simple in structure and high in dedusting efficiency, reduces water consumption of coal mine dust collection, eliminates a high-pressure water pump, and reduces cost.

The invention relates to a bamboo breaking machine capable of automatically screening bamboo tube specifications, comprising a frame, a screening device, a bamboo tube blanking device and a bamboo breaking mechanism. The screening device includes a screening conveying plate and a conveying guard plate. The horizontal part of the screening conveying plate is provided with a screening slot and a feeding slot for defective products. The feeding slot for defective products is equipped with a lifting block for feeding defective products. The lower part of the unloading lifting block is provided with a triangular distribution of defective product blanking hinge seats, and the defective product blanking hinge seat is hingedly matched with the cylinder push rod of the defective product blanking lifting cylinder; the present invention adopts a screening groove to match a screening intercepting block Realize a bamboo tube screening with a diameter specification, which can intercept oval and bent bamboo tubes, and set a lowering block for defective products under the screening block to remove the intercepted defective products, ensure the accuracy of screening, and improve the screening and conveying. s efficiency.

The invention relates to a method for deacidification of an alkylation reaction product. In the method, after being subject to gravity settling, mixed emulsified liquid of the alkylation reaction product (hydrocarbon oil) and sulfuric acid passes through a component with hydrophobic modified ceramic membrane at a membrane surface speed of 0.01-5m / s for separation, and the deacidification of oil is achieved in a cross current filtration mode under the operation pressure of 0.01-0.3MPa and at the operation temperature of 0-40 DEG C. Under the push of pressure, the oil passes through the ceramic membrane, acid in the oil is trapped, and the acid content in the obtained oil is lower than 100ppm, thereby greatly reducing alkaline usage and waste water generation amount in an acid-base refine system of an alkylation technology and reducing the use of electrostatic precipitation; and the ceramic membrane surface is subject to hydrophobic modification, thus the contact angle of water droplet on the membrane surface is 70 degrees-16 degrees. The method is suitable for removal of polar liquid in various oils, has the advantages of simple process, low energy consumption, high separation precision, no environment pollution and high economic and practical value, and is easy to achieve industrial application.

The invention discloses a suspended filler for quick biofilm culturing of microorganisms. The suspended filler is prepared from, by weight, 65-75 parts of high-density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of chitin, 0.8-2 parts of ferroferric oxide magnetic powder and 0.1-0.3 part of manganese zinc ferrite. The density of the suspended filler for quick biofilm culturing of microorganisms is 0.96-0.98 g / cm3. The biofilm culturing speed is high, disengagement does not occur easily, treatment efficiency is high, and the suspended filler is suitable for treating low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic waste water. The suspended filler has extremely high hydrophilia and biocompatibility, the filler has high adsorption strength on biological films, biofilm culturing time is remarkably shortened, and the COD and ammonia nitrogen removal rate is increased remarkably.

The invention discloses a suspension ceramsite filter material for water treatment and a production method of the suspension ceramsite filter material. The method comprises the following steps of: crushing shale which serves as a raw material through a crusher, drying the shale, milling the shale through a ball mill, granulating the shale through a rotary table granulator, and firing in a rotary kiln at the firing temperature of 1,100 to 1,300 DEG C for 18 to 22min; naturally cooling and sieving ceramsites, selecting a grain size of 8 to 12mm, and floating in a water pool under the aeration intensity of 3 to 5L / (m<2>.s) to obtain floatation ceramsites; and wetting the floatation ceramsites in water to obtain the grain density of 0.9 to 1.1g / cm<3>. Shale ceramsites have the characteristics of hydrophilic surface, roughness, porosity, film formation, difficulty in dropping of a bio-film, large specific surface area and high mechanical strength, have the advantages of difficulty in hardening of a suspension filler, uniform water distribution and air distribution, low filtering head loss, light weight and washability, and are suitable for serving as bio-mass carriers for biological sewage treatment and biological micro-polluted water source water supply treatment.

The invention discloses an advanced treatment method for Lurgi coal gasification wastewater, relates to a sewage treatment method and aims to solve the problems that the discharged Lurgi coal gasification wastewater after being subjected to advanced treatment by using the traditional biochemical method still cannot meet the standard and a physic-chemical method is high in cost when being used for carrying out advanced treatment on the Lurgi coal gasification wastewater. The method comprises the following steps of: firstly, coagulation and absorption treatment; secondly, high-density sedimentation treatment; thirdly, advanced oxidation treatment; fourthly, continuous aeration and batch stirring treatment; fifthly, batch aeration biotreatment; and sixthly, V-shaped sand filter treatment to finish advanced wastewater treatment. The advanced treatment method has the advantage that the final effluent obtained through treating the Lurgi coal gasification wastewater by using the method provided by the invention can meet the recycling standard. The advanced treatment method is mainly used for advanced treatment of the Lurgi coal gasification wastewater.

The invention relates to an automatic grinding machine for bamboo joints. The machine comprises a rack and a clamping and grinding device; the clamping and grinding device comprises two half clampingand grinding device bodies; the half clamping and grinding device bodies are matched with a bamboo tube through arc-shaped clamping blocks; grinding disks are arranged in positions where the arc-shaped clamping blocks are matched with the bamboo tube; bamboo joint grinding devices are matched on the left and right sides of the bamboo tube; each bamboo joint grinding device comprises a bamboo tuberotating motor, the bamboo tube rotating motor is connected with a bamboo tube rotating seat, the bamboo tube rotating seat is connected with a bamboo tube pressing air cylinder and an inner joint removal rotating motor, the bamboo tube pressing air cylinder is connected with bamboo tube pressing blocks matched with the left and right end surfaces of the bamboo tube, the inner joint removal rotating motor is connected with an inner joint removal feeding air cylinder, and an air cylinder push rod of the inner joint removal feeding air cylinder is connected with an inner joint removal grinding column. According to the machine, the clamping and grinding device cooperates with the bamboo joint grinding devices which can rotate and press the bamboo tube to grind outer bamboo joints, and the inner bamboo joints can be ground synchronously by the aid of inner bamboo joint grinding parts arranged in the bamboo joint grinding devices, so that the bamboo joint removal efficiency is improved.

The invention discloses a preparation method of an ammonolysis oxidized graphene-based 3D (Three-dimensional) nanoparticle modified organic separation membrane. The preparation method of the ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane comprises the steps of preparing oxidized graphene-based 3D nanoparticles; preparing ammonolysis oxidized graphene-based 3D nanoparticles; adopting a polymer ultrafiltration membrane as a basement membrane, and dispersing the oxidized graphene-based 3D nanoparticles into a polyamine aqueous phase solution and a multiple acyl chloride oil phase solution; soaking, solidifying, rinsing and air drying to obtain the oxidized graphene-based 3D nanoparticle modified organic separation membrane. By adding the oxidized graphene-based 3D nanoparticles into a nanofiltration membrane separation layer, so that the hydrophilia, the permeability and the retention characteristic of the separation membrane are well improved. The novel ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane can be widely applied in various fields of environment, biology, medicine, food and the like.

The invention discloses a method and a system for realizing authentication which can act an operation system into a prior safety system for realizing safety integration among systems in the field by using an acting integrated package, and completes safety authentication, operation authentication and data interchange. The technical scheme provided by the invention can reduce integration cost, prevent the existing product line from being destroyed, reduce integrated time of both sides, ensure safety among systems efficiently, complete charging authentication conveniently, and make the integration on the operation logic and the business model.

The invention relates to a graft modification method of cellulose and derivatives thereof. According to the method, other monomers are initiated to perform graft modification in the presence of a catalyst by utilizing hydroxyls on the surfaces of the cellulose and derivatives thereof. The graft modification is performed in a nitrogen atmosphere, the reaction temperature is 30-100 DEG C, the reaction time is 0.5-48 hours, and the modified cellulose-based material is obtained after the reaction is finished. A filter tip rod produced by adding the modified graft polymer into a cigarette filter has an obvious smoke adsorption effect, harmful ingredients in the smoke can be selectively retained, and the comprehensive performance is excellent. The used raw materials are low in cost, the process method is simple, the reaction system can be repeatedly used, the energy consumption is low, the preparation cost is reduced, and the method has good market application prospects and is an important method for industrial conversion and utilization of the cellulose and derivatives thereof.

The invention discloses suspended microbial packing for wastewater treatment and a preparation method thereof. The suspended microbial packing is prepared from, by weight, 65-75 parts of high density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 1.5-3 parts of gelatin, 1-2 parts of chitin, 0.8-2 parts of ferromagnetic oxide powder and 0.1-0.3 part of manganese zinc ferrite. The suspended microbial packing is high in film formation speed, not prone to fall off, high in treatment efficiency and suitable for treatment of low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic wastewater. The biological packing has the extremely high hydrophilicity and biocompatibility, has the very high adsorption strength to a biological film and is beneficial for interception and accumulation of biomass on a packing carrier, and therefore the packing can better adapt to wastewater treatment under the low concentration condition.

The invention discloses an automatic river channel floating object intercepting device. The automatic river channel floating object intercepting device comprises a left stand column, a right stand column, a gearbox body, an impeller mechanism, an intercepting roller driving mechanism, a transition transmission mechanism, a left balance adjusting mechanism, a right balance adjusting mechanism and an intercepting roller, wherein the left stand column is fixed on one side of a river channel, and the right stand column is fixed on the other side of the river channel; the gearbox body is arranged on one side of the river channel, a water flow inlet is formed in the front side of the lower part of the gearbox body, and a water flow outlet is formed in the right side of the gearbox body; the impeller mechanism is arranged at the lower part of a gearbox body cavity; the intercepting roller driving mechanism is arranged at the upper part of the gearbox body cavity; the transition transmission mechanism is arranged in the middle part of the gearbox body cavity and is in transmission fit with the impeller mechanism and the intercepting roller driving mechanism; and the left balance adjusting mechanism is arranged at the upper part of the left stand column and is connected with the intercepting roller driving mechanism, the left end of the intercepting roller is in transmission connection with the intercepting roller driving mechanism, the right end of the intercepting roller extends to the right stand column and is in sliding fit with the right stand column, and the right balance adjusting mechanism is arranged at the upper part of the right stand column and is connected with the right end of the intercepting roller. The device has the advantages that an ideal non-electric energy consumption effect is realized; floating objects cannot cross the intercepting roller and escape; and the use flexibility is high.