72results about How to "Make the best use of" patented technology

The invention discloses a resource treatment method for a sodium chloride waste salt in the process of dye production. The method comprises the steps: in an oxygen-free environment and under differenttemperature conditions, removing water in the waste salt, gasifying small-molecule organic matter, splitting aromatic ring substances, carbonizing naphthalene, anthracene and fused ring substances, then dissolving the obtained salt, removing carbonized particles so as to a purified sodium chloride solution, and performing bipolar membrane electrolysis on the obtained sodium chloride solution so as to prepare a sodium hydroxide solution and dilute hydrochloric acid. The whole treatment process is simple, efficient, economical and feasible, and meanwhile resource recovery and utilization of thesodium chloride waste salt, the split small-molecule organic matter and carbonized product are realized.

The invention discloses a monitoring system of an omnibearing distributed coal-gangue-mountain spontaneous combustion prevention and a method thereof. Through constructing an omnibearing distributed monitoring system, an internal temperature of a coal gangue mountain is monitored in real time, a corresponding technology parameter is acquired and coal-gangue spontaneous combustion is prevented. In the invention, through using a novel sensing test technology (a distributed fiber sensing test technology), a test device is improved and a set of complete coal-gangue-mountain spontaneous combustion prevention test method is acquired; and by using the acquired technology, good safety guarantee can be provided for aspects of coal-gangue spontaneous combustion prevention and fire extinguishing processing.

The invention relates to a beta-hemihydrate gypsum retarder and a preparing method thereof. Zeolite and metallurgy waste slag (manganese slag, steel slag or ore slag, and the like) are adopted as main raw materials and are subjected to mechanical grinding and mixing to obtain the inorganic composite retarder. Preparing steps are simple, the cost is low and comprehensive effects are good. Synergistic effects of the zeolite, the metallurgy waste slag and cement are fully utilized, and the setting time of beta-hemihydrate gypsum can be adjusted. When the retarder is compared with traditional retarders such as sodium citrate and sodium hexametaphosphate, loss of strength of a gypsum material of the retarder is low, water tolerance of the gypsum material can be effectively improved, gypsum performance is improved, and a problem that the metallurgy waste slag is accumulated and pollutes the environment can be effectively overcome, thus making the best use of everything.

The invention discloses a method for preparing a biomass type coal adhesive from boghead coal and co-producing biomass type coal and an organic fertilizer, which comprises the following steps of: crushing boghead coal, adding alkaline liquor to boil, keeping the temperature, standing, and taking supernate as the biomass type coal adhesive; mixing corn straws, coal gangue with soft coal after crushing, adding the biomass type coal adhesive, solid sulphur and a waterproof agent, after uniformly mixing the biomass type coal adhesive, the solid sulphur and the waterproof agent with water, and extruding, forming and drying through a forming machine to obtain biomass type coal; and filtering biomass type coal adhesive preparation residues, adjusting pH, adding cow dung to ferment, and dosing, pelleting and drying to obtain the organic fertilizer. According to the invention, the abundant boghead coal resource in inner Mongolia is utilized for developing cheap adhesive; the biomass type coal, which has the advantages of being low in cost, high in sulphur content, moisture-proof and water-resistant and is applicable to an industrial furnace, is developed by utilizing abundant coal gangue resource and corn straw resource; and residues after preparing the biomass type coal adhesive from boghead coal are used for preparing the organic fertilizer, and therefore, the method disclosed by the invention is capable of saving energy, reducing emission, reducing the production cost of the biomass type coal, and increasing the additional value of boghead coal and the utilization rate of coal gangue.

The invention provides a plate material, a solid wood composite floor base material and a column material made from branch materials and round rod materials, and a manufacturing method. A core material is formed by splicing half-square round battens; each half-square round batten is a square round batten material obtained by cutting the front, back, left and right surfaces of the a round bar material into bastard faces and forming a circular arc between the two adjacent bastard faces; the square round batten material is sawed into two symmetrical halves by through a center axial line and a bastard face center line to become two half-square round battens with the same cross sections; a part of a plurality of square round batten materials and / or half-square round battens and / or half-square round battens is combined according to requirements; the adjacent bastard faces are bonded to form the required column material, plate material or solid wood composite floor base material. Through the ingenious design and the simple process, the branch materials and the rod materials are made into various materials, so that the wood utilization rate is greatly improved; the precious wood resources are saved; the importing rare hardwood is reduced; the plate material cost is reduced. The purpose is wide; the solid-wood composite floor base material and various plate materials can be manufactured; partition walls, furniture, floor slabs, upright posts and cross beams can be made.

The invention discloses a water permeable brick prepared from construction waste and a preparation method of the water permeable brick, and belongs to the technical field of building materials. According to the water permeable brick, the construction waste serves as an aggregate, and kaolin, fly ash, water reducing agents and water are added, wherein the construction waste aggregate mainly comprises waste concrete, waste tiles, waste stone, ceramsite, waste gypsum and waste glass. The water permeable brick has the advantages that the problem of resource waste is solved, and resources are recycled; the air permeable brick with high water permeability, high strength and good sound absorption effect is obtained through reasonable material selection and raw material grading, and has a good reduction effect on noise pollution caused by urban pavement construction, especially noise pollution caused by vehicles on the road to surrounding houses; due to the good absorbing effect on low frequency noise, the water permeable brick can be also applied to pavement laying for tunnel lights to reduce tunnel noise pollution. The preparation process of the water permeable brick is simple, and production and manufacture are facilitated.

The invention discloses a trash can of classified drop. The trash can of classified drop comprises a can body, cover bodies, an identification system and a drop system. An opening is formed in the upper part of the can body. The can body is partitioned into a plurality of compartments for containing trash of different types by partitions. The cover bodies are used for covering the compartments respectively. The identification system comprises access cards, a recognizer, a storage module and control locks. The drop system comprises a control terminal, detection barrels and control plates. The detection barrels are arranged in the compartments respectively. Each control plate controls the lower end of the corresponding detection barrel to be opened or closed. After a weight sensor on one control plate senses weight, a corresponding scanner starts up, and the control plate opens after the garbage information recognized by the scanner is the same as the classification information prestoredin the scanner. With the trash can of classified drop, classification detection on articles with materials marked is realized at the position of the trash can when the articles are dumped, users canbe urged to dump trash in a classified manner, and then the environmental awareness of the users is improved; and trash classification is more reasonable, follow-up trash treatment is facilitated, theexpense of trash treatment is reduced, pollution caused by trash to the environment is reduced, and trash recycling is facilitated.

The present invention is technological process of baking aluminosulfate cement with desulfurized ash, which has high sulfur and calcium contents and complicated components, as main material. The process converts desulfurized ash into aluminosulfate cement effectively, and needs the addition of no or small amount of bauxite and gypsum.

The invention discloses a trash can capable of automatically sorting. The trash can capable of automatically sorting comprises a can body, a cover body, an entrance guard card, a recognizer, a storagemodule and an identification system of a control lock, a control terminal, a scanner and a sorting system of sorting claws. The can body are separated into a plurality of separate chambers for containing different types of garbage by partition plates. The cover body comprise a first cover body and a second cover body, an opening of the can body is opened and closed by the first cover body, and openings of all separate chambers are opened and closed by the second cover body. The scanner scans garbage dumped on the second cover body, the control terminal controls the sorting claws to sort the garbage onto the corresponding second cover body according to the scanning results, the second cover boxy is opened, so that the garbage can fall into the separate chambers. According to the trash cancapable of automatically sorting, automatic sorting and discarding of garbage discarded from users in the trash can be realized, the life of people is facilitated, garbage classification can be more reasonable, the subsequent disposal of the garbage is facilitated, the cost of garbage disposal is reduced, the pollution of the garbage to the environment is reduced, and recycling of the garbage is also facilitated.

The invention discloses a making method of toluenediamine methyl formate of nanometer zinc oxide, which comprises the following steps: adding diaminotoluene, zinc acetate and dimethyl ester carbonate in the autoclave with molar rate at 1:0.01-0.7:15-30; sealing the autoclave; stirring; reacting under 100-200 deg.c for 1-10h; filtering; decompressing to rectify under 30-70 deg.c at 5-30Kpa; obtaining the solid product (toluenediamine methyl formate); washing filter pie; drying in the vacuum; obtaining the nanometer zinc oxide.

The invention discloses a watermelon processing machine and a method thereof, and particularly relates to the field of watermelon processing. The watermelon processing machine comprises a collecting box, wherein a lower rotating disc is movably arranged at the top of the collecting box, a motor box is fixedly installed in the middle of the bottom of an inner cavity of the collecting box, a driving motor is fixedly installed in the motor box, an output shaft of the driving motor is fixedly connected with the bottom of the lower rotating disc, three evenly-distributed connecting rods are fixedly installed on the peripheral side of the top of the lower rotating disc, and an upper rotating disc is fixedly installed at the top ends of the connecting rods. A motor rotates forwards and backwards to drive a movable block and a sliding sleeve to move up and down, when a six-face cutter moves downwards vertically and a cylinder moves upwards vertically, the function that the device automatically cuts a watermelon body into watermelon segments is achieved, when the six-face cutter moves upwards vertically and the cylinder moves downwards vertically, a U-shaped block drives the cutter to do centripetal motion, and a watermelon peeler realizes the function of peeling watermelon petals, and classifies and collects peeled parts.

The invention discloses a high-heat-conductivity long-life blast furnace hearth and further provides a brick lining building method of the high-heat-conductivity long-life blast furnace hearth. The high-heat-conductivity long-life blast furnace hearth comprises a furnace shell, a cooling wall and brick linings which are arranged sequentially from outside to inside. On the lower portion of the hearth, the lower-middle portion of the hearth, the middle of the hearth, the upper-middle portion of the hearth and the upper portion of the hearth, the brick linings comprise small-block carbon bricks,carbon ramming material layers and large-block carbon bricks which are arranged sequentially; and at the top of the hearth, the brick linings are formed by building a plurality of small-block carbon bricks. According to the high-heat-conductivity long-life blast furnace hearth, cracking of the hearth brick linings due to thermal stress and erosion damage caused by harmful elements through cracks can be avoided, circulation erosion of molten iron can be further resisted effectively, thus the erosion damage to the hearth is relieved, and the service life of a blast furnace is prolonged.

The invention relates to waterproof mortar and a preparation method thereof, and belongs to the technical field of polymer modified fibers. The waterproof mortar comprises cement, river sand, steel slag, a polymer, a water-retaining agent, waste glass fiber reinforced plastic fibers, polypropylene fibers and silica fume. The waterproof mortar provided by the invention improves the original mechanical properties, aims to provide a research basis for efficient resource utilization of steel slag and waste glass fiber reinforced plastics, realizes best use of the steel slag and the waste glass fiber reinforced plastics, expands the application fields of the steel slag and the waste glass fiber reinforced plastics, is suitable for water resistance, seepage resistance and moisture resistance ofground buildings, overcomes the phenomena of water leakage and water seepage of buildings, and prolongs the service life of building materials.

The invention discloses a method of joint production of urea hydrogen peroxide and sodium percarbonate, comprising the following steps: in a material system at the following mass ratio that sodium carbonate: urea: hydrogen peroxide: water is 1:1.30-1.60:0.42-0.45:2.75-3.20, crystallization filtering is carried out at the temperature of 0 DEG C, the obtained solid phase is dried at the temperatureof 60 DEG C to obtain sodium percarbonate, and the residual mother solution S is evaporated and concentrated; and after parts of separated sodium carbonate are evaporated to dryness, urea and hydrogen peroxide of which the mass concentration is 30% are added to ensure that the mass ratio in the system is as follows: sodium carbonate: urea: hydrogen peroxide: water is 1:14.00-16.00:5.50-7.50:14.00-16.50, crystallization filtering is carried out at the temperature of 0 DEG C, the obtained solid phase is urea hydrogen peroxide, and sodium carbonate is added into the liquid phase to ensure that the mass ratio in the system is still as follows: sodium carbonate: urea: hydrogen peroxide: water is 1:1.30-1.60:0.42-0.45:2.75-3.20, and thus cycle production is realized. The invention adopts mild reaction conditions and convenient operation, improves the economy of the urea hydrogen peroxide preparation technology, avoids adverse effect on environment due to mother solution abandonment and lowers production cost.

The invention relates to a utilization method of livestock and poultry slaughtering waste. Livestock and poultry slaughtering waste is adopted as the raw material, and physical purification, acidolysis, trisodium phosphate modification and other steps are carried out to prepare a gypsum retarder. The method specifically includes: 1) the animal wastes for removing impurities from the livestock and poultry waste, performing cleaning, removing dirt and then conducting crushing; 2) adding the crushed waste into a reactor, adding concentrated hydrochloric acid and water to carry out acid hydrolysis reaction at a hydrolysis temperature of 90-98DEG C for 5-7h, performing cooling at the end of reaction, and carrying out filtering to obtain a mixed solution; and 3) using a trisodium phosphate solution to conduct modification treatment on the mixed solution obtained in step 2) for 5-10min to a pH of 7-9, thus obtaining the gypsum retarder. The method provided by the invention solves the safety and clean utilization problems of livestock and poultry slaughtering waste, is of important practical significance to development and utilization of discarded animal protein, realizes best use of things, and saves resources. The retarder obtained by the method provided by the invention has good retarding effect and little negative influence on the strength of gypsum material.

The invention relates to the field of kitchen waste treatment, in particular to a kitchen waste treatment process which comprises the following steps that S1, food waste in kitchen waste is received through a food waste receiving system, and kitchen waste in the kitchen waste is received through a kitchen waste receiving system; s2, treating the received food waste through a food pretreatment system to obtain crude oil, organic solid residues, impurities and organic feed liquid; the method comprises the following steps: treating received kitchen garbage through a kitchen garbage pretreatment system to obtain crude oil, organic solid residues, impurities and organic feed liquid; therefore, the extraction rate of grease in the food waste with large grease content is greatly improved, organic solid residues produced after grease extraction of a huge amount of the food waste are treated by a biological composting system, the water content in the kitchen waste is greatly reduced, the purpose of reduction is achieved, the organic solid residues are well utilized, and the production cost is reduced. Therefore, cyclic utilization of resources is realized.

The invention discloses a treatment process and treatment system for producing styrene high-concentration wastewater from methanol toluene, wherein the treatment process comprises the following steps:adding a flocculating agent into the styrene high-concentration wastewater from the methanol toluene for flocculation, carrying out triple filtration on the obtained flocculated wastewater to obtainfiltrate and filter residue with the activated sludge concentration of 19-21mg / L; carrying out primary rectification separation on the filtrate, and respectively obtaining an ethylbenzene solution anda styrene solution at the top of the tower and the bottom of the tower; carrying out secondary rectification separation on the ethylbenzene solution, and respectively obtaining methanol-toluene mixedsolution and high-concentration ethylbenzene at the top of the tower and the bottom of the tower; carrying out styrene rectification separation on the styrene solution to obtain high-purity styrene and catalyst powder rich in tar; removing excessive moisture from the high-purity styrene to obtain a high-purity styrene product. The treatment system comprises a flocculation unit, a filtration unit,a rectification separation unit, a filter residue recovery unit and a purification unit. The treatment process and treatment system can achieve zero discharge of inorganic / organic waste and is environment friendly.

The invention discloses a tobacco leaf threshing and redrying and impurity winnowing processing technology and equipment. The tobacco leaf processing technology comprises the following steps of winnowing a tobacco leaf material which is moisturized with hot air to obtain a tobacco leaf main material and tobacco leaf impurities, keeping the tobacco leaf main material on a tobacco leaf main material production line, and manually removing impurities from the separated tobacco leaf impurities to obtain a tobacco leaf residual material. The technology is characterized in that the tobacco leaf residual material and the tobacco leaf main material are kept in a separated state, the tobacco leaf residual material is conveyed to a fragment drying unit, and the tobacco leaf residual material and fragments are dried, screened and packaged together. The tobacco leaf residual material obtained through winnowing and impurity removal is separated, and the quality of the tobacco leaf main material is guaranteed, so that the quality of cigarette products is improved.

The invention discloses an adjustable brake assembly for a tricycle. The adjustable brake assembly comprises a brake disc (1), a brake shoe assembly (2), a tension spring (3), a brake pin (4) and a brake shaft (5). The brake pin comprises a first shaft lever (4a), a second shaft lever (4b) and a flat square (4c). The downward offset distance e, relative to the axis of the second shaft lever, of the axis of the first shaft lever is greater than or equal to 3mm. The first shaft lever is matched with a central sleeve (21a) of a brake shoe (21). The second shaft lever is matched with a brake pin sleeve (1a). The flat square extends out of the brake shaft sleeve (1b), is sleeved with a scale pointer steel disc (6) and is locked tight through a nut (7). The periphery of the end face, close to the scale pointer steel disc, of the brake shaft sleeve is provided with scale marks (1c). The maximum width W1 of a kidney-shaped shaft lever (5a) is greater than or equal to 32mm, and the minimum width W2 of the kidney-shaped shaft lever (5a) is 14mm-15mm. According to the adjustable brake assembly for the tricycle, the abrasion to a friction plate can be compensated to the maximum degree, a brake clearance can still be accurately controlled to keep the optimal state of 0.3-0.6mm in the middle and later periods of the abrasion, the service life of the friction plate is prolonged, and waste is avoided.

The invention discloses a forging and pressing machine. The forging and pressing machine comprises a machine body. Bottom feet are arranged on the two sides of the machine body. First supporting columns are connected to the tops of the bottom feet. An inner cavity of each first supporting column is connected with a second supporting column through a hydraulic oil cylinder. A connecting column is arranged at the top of the machine body. A traction spring and a transformer are arranged in the middle of the connecting column. A permanent magnet is arranged in the middle of the traction spring. The two sides of the permanent magnet are connected with conducting coils. One end of the transformer is connected with the conducting coils. The bottom of the permanent magnet is connected with a forging and pressing hammer through a steel pipe. A forging and pressing platform is arranged at the bottom of the machine body. According to the forging and pressing machine, the supporting columns are driven by lifting of the hydraulic oil cylinders to ascend and descend, so that the forging and pressing machine can forge and press high metal objects high in height, the transformer changes the voltage of the conducting coils, consequently the forging and pressing strength of the forging and pressing hammer is changed, controllability is high, the ideal forging and pressing effects are achieved, the forging and pressing efficiency of the objects is improved, and time is saved.

The invention discloses a compound briquette containing residues in sugar mills. The compound briquette is prepared from the following raw materials in parts by weight: 40-50 parts of pulverized coal, 5-10 parts of oil shale, 20-25 parts of filter mud in sugar mills, 20-28 parts of biomass fuel powder, 3-6 parts of limestone, 1-1.4 parts of magnesium chloride, 0.5-0.9 part of sodium carbonate, 2-4 parts of silicon carbide and 8-10 parts of molasses, wherein the biomass fuel powder is prepared by drying one or more of soybean straws, corn straws, straws, corncobs, eucalyptus barks and eucalyptus branches in the sun and then grinding the materials or by carbonizing and grinding. Adopting the agricultural and forestry residues, such as filter mud in sugar mills, molasses, straws and eucalyptus barks, as the raw materials, the briquette achieves the effects of turning waste into wealth and making the best use of the materials and has positive significance to environmental protection.

The invention discloses a method for removing radionuclide strontium in water. The method comprises the following steps: measuring the effluent quality of a BAC process, testing and characterizing anactivated carbon sample used in the BAC process, and carrying out practical application. According to the method, the BAC process does not need to be reconstructed or the steps of pretreatment, post-treatment and the like do not need to be added, energy is saved, and in-situ reutilization of the activated carbon used in the BAC process is achieved; according to the method for removing the radionuclide strontium (Sr) in the water by using the BAC process, the actual factors of the traditional water treatment are fully considered, so that the purposes of making the best use of materials and saving resources are achieved. Compared with a single treatment process, the method is combined with a traditional water treatment process, is low in cost, environmentally friendly and good in economic benefit, saves resources and has positive significance in promoting social sustainable development.

The invention provides a method for sticking natural veneer. The method for sticking the natural veneer comprises the following steps that (1) the two sides of a board are coated with glue, the glue coating amount is 80-100 g / m<2>, and standing is conducted for one to three minutes at 25 DEG C; (2) the inner surface of the board is heated; (3) the inner surface of the natural veneer is coated with glue, and the glue coating amount is 150-180 g / m<2>; (4) the inner surface of the natural veneer is stuck to the inner surface of the board; (5) the outer surface of the natural veneer is coated with paint; (6) the product coated with the paint is dried.

The invention discloses a system of utilizing the waste heat of high-aluminum coal and gangue calcined kaolin. The system comprises calcining equipment, cooling equipment, denitration equipment, a first dust collector, a steam generating plant, a steam turbine set, a generator set, a desulfurizer, a second dust collector and a first fan; a charging hole and a discharge hole are formed in the calcining equipment; the calcining equipment is connected with the denitration equipment through a flue gas pipeline at one side of the charging hole; the denitration equipment is connected with the firstdust collector; the first dust collector is connected with the steam generating plant through a pipeline; the steam generating plant is connected with the steam turbine set through a pipeline; the steam turbine set is connected with the generator set; the steam generating plant is connected with the desulfurizer through the flue gas pipeline; the desulfurizer is connected with the second duct collector through a pipeline; the second dust collector is connected with the first fan; and the calcining equipment is connected with the cooling equipment. The system disclosed by the invention eliminates the gangue pollution, realizes the comprehensive utilization of the waste heat during the resource utilization of gangue, and has an obvious energy saving and emission reduction effect.

The invention discloses an intelligent sorting garbage can, which comprises a bucket body with an opening at the upper part; the bucket body is divided into a plurality of compartments for holding different types of garbage by a partition; Connected to the barrel; identification system, which includes access control cards, identifiers, storage modules and control locks; delivery system, which includes control terminals, detection cylinders and control panels; the detection cylinder is set in the compartment; the control panel can be opened and closed It is connected to the lower end of the detection cylinder in the same way; after the control lock is turned on, the scanner is turned on, and the control panel is turned on when the scanner recognizes that the input garbage information is the same as the category information pre-stored in the scanner. It can realize the classification and detection of marked materials when they are discarded at the trash can, and can urge users to classify and discard waste, thereby improving users' environmental awareness; making waste classification more reasonable, facilitating subsequent waste disposal, and reducing waste. Reduce the cost of disposal, reduce the pollution of garbage to the environment, and facilitate the recycling of garbage.

The invention relates to a disinfecting and cleaning device for medical apparatus and instruments. The disinfecting and cleaning device comprises a disinfecting device, a collecting tank, a medical wastewater collecting box, a mixing chamber, an acidification chamber, a high-temperature chamber, a flocculation chamber, a settling chamber, an adsorbing and filtering chamber and an ultraviolet disinfection chamber. By means of arrangement of a left clamping plate and a right clamping plate with real-time adjustable distance, the medical apparatus and instruments with any size and any shape can be disinfected and cleaned. Disinfectant nozzles, infrared lamps and ultraviolet disinfection lamps which rotate in sequence are arranged, so that disinfection cleaning, drying and further strengtheneddisinfection of the medical apparatus and instruments are realized in one device. With introduction of a special water treatment system in the disinfecting and cleaning device, cleaning wastewater and medical wastewater are recovered simultaneously, and existing pollutants are treated while zero pollution of a production process is realized indeed.

The invention belongs to the processing field of traditional Chinese medicinal materials, and discloses a method for soaking honeysuckle buds. The method includes the following steps that (1) cleaning is conducted, wherein the honeysuckle buds are placed on a screen, and are washed for 30-60 seconds by clear water with the water pressure being 0.03-0.06 Mpa; (2) scattering is performed, wherein the tips of the buds are made to face downwards, and are put into a cylinder with the lower portion being provided with an upward cutter, the hole diameter of an inner hole of the cylinder is 4-6 mm, force is applied to the buds from the upper ends of the buds, and the buds are scattered outwards from the tips of the buds; (3) decoction is carried out, wherein the scattered buds are put into a constant temperature decoction tank to be decocted for 15-20 minutes at the temperature of 50-60 DEG C, and accordingly a mixed solution is obtained; (4) filtering is conducted, wherein the mixed solution obtained in the third step is placed into a filter device to be filtered. The method for soaking the honeysuckle buds solves the technical problems that medicinal components are lost and making the best use of the honeysuckle buds cannot be achieved in the honeysuckle soaking process at present.

The invention discloses a composite energy absorption device, which comprises a sleeve, a base and an upper cover, the upper cover is connected to an energy absorption front end of the sleeve, the base is connected to an energy absorption rear end of an energy-absorbing sleeve, and the sleeve is filled with a honeycomb body; a plurality of spiral guide grooves which spirally extend in parallel around the central axis are formed in the wall of the sleeve, and notches which are connected with the spiral guide grooves in a one-to-one correspondence mode and have the same spiral angle are formed in the positions, corresponding to a pipe opening of the sleeve energy absorption rear end, to which the spiral guide grooves extend. The base is provided with a cone-frustum-shaped part, a plurality of blunt cutting edges are arranged on the circumference of the small-diameter end of the cone-frustum-shaped part at intervals, and when the sleeve is connected with the base, the blunt cutting edges are inserted into the notches in the one-to-one correspondence mode. The invention has the following advantages: the energy absorption process is stable, the specific energy absorption is high, and the collision peak force is small.

The invention discloses a PDU device of a data machine room and a control method thereof. The PDU device of the data machine room comprises a box body, a box cover, a plurality of connecting plates and a dismounting and mounting structure, first mounting cavities are formed in the two inner side faces of the box body, connecting supports are arranged on the two sides of any connecting plate, and the connecting supports and the connecting plates are integrally formed; the multiple connecting plates are detachably connected with the box body and arranged side by side, any one connecting plate islocated in the box body, the two ends of any one connecting plate are located in the first mounting cavities in the two inner side faces of the box body correspondingly, every two adjacent connectingplates are detachably connected, the box cover is detachably connected with the box body, the disassembly and assembly structure comprises a first spring and a clamping block, and the number of connecting plates in the box body is changed, so that the best use effect is achieved, the practicability of the PDU device is improved, and the problem that the practicability of the PDU device is not high is solved.