173results about How to "Increase contact frequency" patented technology

There is provided a honeycomb structure where a catalyst is loaded on surfaces of inner pores of the surface layer and on a surface of the surface layer; a relation between a catalyst area proportion A of the catalyst to a gap area proportion B of a gap in a cross-section of the surface layer on the inlet side is 1%<A / B<90%; and a relation between an average catalyst area proportion, A1, from the surface to a point having a depth of one third of the thickness of the surface layer including the surface of the surface layer on the inlet side and a catalyst area proportion A2 in a central portion of the surface layer is A1 / A2>1.5.

A heat exchanger having excellent heat exchanging performance is obtainable by a simple production technique and at a low cost. This is achieved by providing a fin member and by increasing heat conductivity between the fin member and a meandering pipe body. Further, the heat exchanger is made compact for high degrees of layout freedom, enabling the heat exchanger to be installed in a tight space. Engagement grooves are provided in both end surfaces, which are opposite to each other, of a fin member in which fins are parallel arranged. Straight pipe sections are parallelly arranged, with gaps in between, in the engagement grooves of the fin member. The straight pipe sections a are connected at bent sections. A pair of meandering sections is arranged opposite to each other with an insertion gap of the fin member in between. On of the meandering sections and the other meandering section are connected by a connection pipe to form a meandering pipe main body. The straight pipe sections of the one meandering section are arranged in the engagement grooves in the one end surface of the fin member inserted and arranged in the insertion gap between the one meandering section and the other meandering section of the meandering pipe body, and the straight pipe sections of the other meandering section are arranged and fixed in the engagement grooves in the other end surface.

A method of removing photoresist film with high efficiency of removal and friendliness with the environment while reducing the material consumption and the cost for the ventilation facility, and an apparatus used for the method are provided. Particularly the present invention provides a method of removing a photoresist film provided on a surface of a substrate, comprising steps of in a sealed system, disposing the substrate surface having the photoresist film to contact with a photoresist film removing solution, making ozone exist in gas phase and / or solution phase in the vicinity of the liquid surface of the photoresist film removing solution, and changing a relative position between the surface of the substrate and the liquid surface of the solution to decompose or remove the photoresist film from the substarate, characterized in that the relative position is changed continuously or intermittently within a range between a position where a bottom edge of the substrate is present above the liquid surface of the solution, and another position where a top edge of the substrate is present below the liquid surface of the solution. The present invention also provides an apparatus used for the method.

The invention discloses a phosphotungstic acid-metal organic skeleton used for catalyzing hydrolysis of cellulose, and a preparation method and application thereof. According to the invention, organic ligand with strongly electronegative groups and basic groups is screened out and participates in coordination reaction of a metal organic skeletal material so as to realize functionalization, phospho-tungstic acid is directly added into a synthesis system, and immobilization is realized in the process of synthesis. The prepared phosphotungstic acid-metal organic skeleton reduces the frequency of contact with glucose through formation of a hydrogen bond with cellulose so as to reduce side reaction of glucose under the catalysis of acid, high glucose selectivity is obtained, and oriented conversion of cellulose to glucose can be realized; meanwhile, the effect of the hydrogen bond can weaken the effect of a hydrogen bond in cellulose, reduces the crystallization degree of cellulose, enables cellulose to be easier to hydrolyze and improves hydrolysis efficiency.

The invention discloses a nano-aluminum slurry. The nano-aluminum slurry is composed of the following components in parts by weight: 1-20 nano-aluminum powder, 0.05-3 dispersant, and 80-100 solvent; wherein the dispersant is selected from From polycarboxylates, polycarboxylates, polyethylene glycols, polysilanes, polyacrylic acid, silane coupling agents, titanates, aluminate coupling agents; wherein the solvent is selected from alcohols, Ketones, esters, aromatic hydrocarbons, cycloaliphatic hydrocarbons or water. The preparation method of the slurry comprises the following steps: (1) adding the dispersant into the solvent according to the proportion and stirring evenly; (2) putting the nano-aluminum powder into the above-mentioned mixed liquid, stirring it with a ladle to soak it Wet and preliminary dispersion; (3) Disperse by ball milling with a planetary ball mill for 0.3-1 hour to obtain a finished product. The method is to use a suitable dispersant to treat the nano-aluminum powder, coupled with the shearing and emulsification of the ball mill, the nano-aluminum powder can be highly dispersed in the medium to form a uniform and stable slurry, which can be widely used in explosives, fuels, Coatings, activated sintering additives, electronic device coatings and other fields.

The invention provides a round pipe inner wall rustproof polishing device based on machining, and relates to the technical field of polishing mechanical equipment so that the problems that in the useprocess of an existing round pipe inner wall polishing device, because the space of the inner wall of a round pipe is limited, a polishing mechanism can only partially enter the round pipe, the polishing mechanisms needs to be partially replaced and adjusted according to the requirements of different lengths of round pipes, in addition, during polishing, the round pipe needs to be arranged on thedevice in a sleeving mode in advance and fixed, and the work time is wasted when a lot of round pipes are machined can be solved. The round pipe inner wall rustproof polishing device comprises a bottom frame, the bottom frame is integrally of an n-shaped structure, a disc-shaped polishing table is fixedly installed at the right end of the inner wall of the lower end of the bottom frame, and a rotary mechanism horizontally installed rightwards is fixedly installed at the upper end of the bottom frame. According to the round pipe inner wall rustproof polishing device based on machining, the leftend of the rotary mechanism is fixedly provided with a transversely-arranged rotary motor, in addition, through the special structure of a polish brush, the frequency of the polish brush making contact with the pipe wall during polishing can be increased, and the polishing efficiency is improved.

The invention discloses a planetary pavement garbage cleaning device. The planetary pavement garbage cleaning device comprises a machine frame, a power device, a transmission device, rolling brush devices and a garbage collection device. The power device and the transmission device are mounted on the machine frame, and the power device drives the transmission device to work, thereby driving spiralbrushes of a plurality of rolling brush devices to revolve and rotate; and pavement garbage is efficiently swept to the center. The garbage collection device collects the garbage concentrated on thecenter into a trash can through a suction pipe, a coarse filter screen and a centrifugal separator by negative pressure. The planetary pavement garbage cleaning device is suitable for the cleaning ofrelatively large pavement garbage in common cities or districts and townships, and has the characteristics of high cleaning efficiency and good effect on the relatively large pavement garbage.

The invention provides an instant messaging client for acquiring a contact list, comprising a recent contact list, a contact state update request receiving unit, a recent contact frequency calculating unit, a sequencing unit and a screening unit, wherein each contact item of the recent contact list comprises a unique mark of the contact, latest contact time with the contact and a recent contact frequency with the contact; the contact state update request receiving unit is used for receiving contact state update requests initiated by the instant messaging client; the recent contact frequency calculating unit is used for calculating new recent contact frequencies of the contacts and updating the recent contact list when the contact state update request receiving unit receives a state updaterequest of a contact; the sequencing unit is used for sequencing the contacts in the recent contact list according to the recent contact frequency; and the screening unit is used for screening the sequenced recent contact list and generating a contact list. The instant messaging client is convenient for a user to quickly position and find out a contact who is contacted with most recently from numerous contacts to communicate.

There is provided a honeycomb structure where a catalyst is loaded on surfaces of inner pores of the surface layer and on a surface of the surface layer; a relation between a catalyst area proportion A of the catalyst to a gap area proportion B of a gap in a cross-section of the surface layer on the inlet side is 1%<A / B<90%; and a relation between an average catalyst area proportion, A1, from the surface to a point having a depth of one third of the thickness of the surface layer including the surface of the surface layer on the inlet side and a catalyst area proportion A2 in a central portion of the surface layer is A1 / A2>1.5.

The invention provides a sludge drying system, which comprises a conveying apparatus, a tempering apparatus, a dehydration apparatus and a drying apparatus. The drying apparatus comprises a housing, the housing comprises a separation wall used for dividing the housing into a first drying chamber and a second drying chamber, and a communication port is formed on the separation wall and used for communicating the first drying chamber with the second drying chamber. A feed inlet and an air outlet are arranged on the upper part of the first drying chamber, and a discharge hatch is arranged on the circumferential wall of the first drying chamber. An air inlet is arranged on the circumferential wall of the second drying chamber. A stirring apparatus is arranged in the first drying chamber, wherein, the stirring apparatus comprises a rotation shaft and a stirring component fixed on the rotation shaft, and the stirring component is used for scraping the sludge near the communication port. An air blast apparatus is capable of communicating with the second drying chamber when passes through the air inlet. The invention also provides a sludge drying method by using the sludge drying system.

The invention discloses an experimental device and method for treating antibiotic wastewater through an iron-carbon micro-electrolysis method. An iron-carbon micro-electrolysis device comprises a top cover, a stuffing region, a multihole plate supporting layer, a heating stick, a temperature controller and an aeration pipe. The invention further discloses a method for treating the antibiotic wastewater by using the device. The method comprises the following steps: injecting the antibiotic wastewater into an adjustment pool, adjusting pH to be 2.0 to 4.0, then injecting the antibiotic wastewater into a reactor through a water inlet of an iron-carbon micro-electrolysis reactor, and enabling a fan to blow air through an air inlet for aeration, wherein discharged water flows back into the reactor from the water inlet through a backflow pump; enabling the water to stay for 4 to 8 hours, and then discharging the water from a water outlet, thus completing treatment of the wastewater. The experimental device has the advantages of good treatment effect, long service life, simple operation and low cost.

The invention discloses a cable surface cleaning device. The device comprises a shell (1) with an inner cavity; a storage box (2) is arranged at the top of the shell (1); a cleaning box (3) is arranged in the inner cavity; the storage box (2) communicates with the cleaning box (3) to supply a cleaning agent into the cleaning box (3); a slide plate (4) is arranged in the cleaning box (3); a cable (10) can penetrate through the slide plate (4); a slide rod (13) is fixed at the top of the cleaning box (3), and is coated with a slide sleeve (12); the slide sleeve (12) is connected with the slide rod (13) for driving the slide rod (13) to slide along the slide rod (13); and a drying block (7) is additionally arranged in the inner cavity, wherein the cable (10) can penetrate through the drying block (7) after passing through the cleaning box (3). The cable surface cleaning device can perform efficient oil stain removing treatment for the cable.

The invention provides an intelligent reminding method and system, a mobile terminal and a cloud server, wherein the intelligent reminding method comprises the steps that: the mobile terminal obtains a record of communication of the mobile terminal; the mobile terminal analyzes the record of the communication to obtain interpersonal relationship information of a mobile terminal user, wherein the interpersonal relationship information comprises information of a contact and contact rule information of the contact communicated with the user; and the mobile terminal execute contact reminding on the user according to the interpersonal relationship information. According to the method provided by the embodiment of the invention, the record of the communication of the mobile terminal can be analyzed to obtain the information of the contact and the contact rule information of the contact communicated with the mobile terminal user, and thus the intelligent contact reminding is carried out on the user automatically without setting call reminding by the user, the convenience is brought for the user, the contact frequency among the users can be increased, and further the interpersonal relationship of the users is enhanced.

The invention relates to a pleurotus pulmonarius refrigeration device convenient to move and used in a high temperature season and a cultivation process. The pleurotus pulmonarius refrigeration device comprises a frame and a cooling water tower, wherein the frame can move on an aisle inside a pleurotus pulmonarius greenhouse, and the cooling water tower is arranged outside the pleurotus pulmonarius greenhouse. A support for allowing a condensing unit to be installed is arranged in the front of the frame, the cooling water tower and the condensing unit are connected through an extension copper tube to form a circulation loop, and a compressor unit and a control cabinet are arranged at the rear of the frame. The pleurotus pulmonarius cultivation process in which the refrigeration device is adopted includes the steps of fungus greenhouse building, fungus bag manufacturing, sterilizing, inoculating, cultivating, bag opening, low temperature stimulating, fruiting managing and picking, pleurotus pulmonarius fungus bags can be stimulated at the low temperature without being transferred, demands for pleurotus pulmonarius production labor force are lowered, and the per unit yield and the quality of pleurotus pulmonarius are improved through the cultivation process.

The invention discloses an oxidation catalyst for soot particles of a diesel and a preparation method thereof. The oxidation catalyst is prepared from a coating material and an active component impregnated on the coating material. The active component is prepared from a noble metal salt containing Pt and Pd. The total content of noble metals in the catalyst is 0.5 to 3 g / ft3, and a weight ratio ofthe noble metal Pt and the noble metal Pd is 2:1 to 10:1. The coating material is a high-cerium-content composite metal oxide, wherein the content of cerium oxide is greater than or equal to 80% by weight. The preparation method comprises the following steps: directly mixing the coating material and the noble metal salt solution of the active component; performing stirring and ball milling, and controlling and adjusting a pH value to 1.5 to 5.5, a particle diameter D50 to 2 to 7 [mu]m and a solid content to no more than 20%; and coating a carrier with a mixture obtained in the previous step and then performing calcinations so as to obtain the catalyst. The carrier slurry of the catalyst in the invention is uniform in distribution and free of the phenomenon of plugging; and the catalyst has low back pressure and high oxygen storage capacity in a practical exhaust gas purification and treatment system, and can achieve the purpose of rapidly oxidizing PM at a low temperature.

An apparatus for removing a photoresist film includes a substrate cassette for fixing a substrate having a surface covered with a photoresist film, an ozone feed tube for supplying ozone, a liquid feed tube for supplying a liquid photoresist film removing solution, and a processing tank for recovering and processing at least one of ozone and the liquid photoresist film removing solution, wherein the liquid photoresist film removing solution is supplied through the liquid feed tube as a liquid or mist, at least one of ozone and the photoresist film removing solution being continuously supplied.

The invention discloses a nano-carbon low-carbon magnesia-carbon brick for ladle slag lines and a preparation method, wherein the magnesia-carbon brick comprises fused magnesia with five particle sizes, dispersible nano-carbon and an antioxidant, and through coating of nano-carbon films on the surfaces of fused magnesia particles with different particle sizes and application of the dispersible nano-carbon, the nano-carbon low-carbon magnesia-carbon brick can be used for ladle slag lines. By utilizing the characteristics that the nano carbon film and the dispersible nano carbon are mainly amorphous carbon, contain a small amount of graphite young crystals, can be infiltrated by a solvent and the like, infiltration and adsorption of the nano carbon film and the dispersible nano carbon to anorganic binding agent are improved, and uniform dispersion of the nano carbon in the magnesia carbon brick is realized; in addition, the size of carbon particles in the magnesia carbon brick is greatly reduced by controlling the sizes of the nanocarbon film and the dispersible nanocarbon with the thickness of 20-200 nanometers, the contact frequency of a refractory raw material of the magnesia carbon brick and the carbon particles is remarkably improved, the performance of the carbon particles is exerted under the condition of low carbon content, and the anti-erosion permeability of the magnesia carbon brick is improved.

A method of removing photoresist film with high efficiency of removal and friendliness with the environment while reducing the material consumption and the cost for the ventilation facility, and an apparatus used for the method are provided. Particularly the present invention provides a method of removing a photoresist film provided on a surface of a substrate, comprising steps of in a sealed system, disposing the substrate surface having the photoresist film to contact with a photoresist film removing solution, making ozone exist in gas phase and / or solution phase in the vicinity of the liquid surface of the photoresist film removing solution, and changing a relative position between the surface of the substrate and the liquid surface of the solution to decompose or remove the photoresist film from the substarate, characterized in that the relative position is changed continuously or intermittently within a range between a position where a bottom edge of the substrate is present above the liquid surface of the solution, and another position where a top edge of the substrate is present below the liquid surface of the solution. The present invention also provides an apparatus used for the method.

The invention discloses a microblog system friend recommending method based on neighbor relations. The method is mainly characterized in that the current positions and the interests of online users are combined, microblog users who has similar interests within a user view range are recommended to a source user, and an approach for establishing connection and communication with surrounding interested persons surrounding persons who the user might be interested in is provided to a social media user. Thus, the method comprises the steps of: firstly establishing a neighbor group for the source user, and then utilizing a word bag and matrix decomposition method to excavate the interest of the user from microblog content; then measuring the interest similarity of the microblog users in the neighbor group through a hypercube; and finally providing a shortcut algorithm for theme matching so as to further improve the accuracy of interest recommendation. By adopting the method, precise interest recommendation can be carried out on the microblog users who are at the same place at present, and the purposes that information which the user might be interested in are excavated from mass microblog data and the connection among the users are facilitated are achieved.

The invention discloses an extraction method of microalga grease. The extraction method comprises the following steps of: with alga ooze or dry powdery microalgae as raw materials, smashing pretreated microalgae in a microwave radiation manner, and meanwhile, extracting the microalgae by using an organic solvent; and after the extraction is ended, separating all substances to obtain the microalga grease. The microwave frequency can be any one of 2450MHz, 915MHz and 896MHz, and the microwave power is set to be 1-50kW / L. The method provided by the invention has the advantages of simple operation process, short extraction time, low energy consumption, strong raw material adaptability, high microalga grease yield and the like.

Disclosed is a hydrogen-reduced water which is capable of efficiently eliminating active oxygen because of containing a large amount of a reactive substance that reacts at a high speed with active oxygen in vivo and showing a high heat transfer speed. Also disclosed are a method of producing the hydrogen-reduced water as described above and a method of storing the same. The preceding hydrogen-reduced water is characterized by showing a higher temperature change speed than a hydrogen-free water under predetermined temperature conditions.

In order to efficiently deodorize and sterilize an inside of a refrigerator, the refrigerator includes a heat-insulating main body which is made of a heat-insulating material and in which a storage compartment is formed, a door attached to an opening provided on the heat-insulating main body so as to be openable and closable, and a cooling unit which cools air inside the heat-insulating main body,and the refrigerator includes: a support which is placed in the storage compartment and on which a photocatalyst is supported; an irradiation unit which irradiates the support with excitation light which excites the photocatalyst; and an air blowing unit which forcibly blows the cool air inside the storage compartment toward the support.

The invention relates to an olefin polymerization catalyst containing beta-diketone metal complex, its preparation and application. The preparation comprises the following steps: letting potash, potassium iodide, acetylacetone, an acetone solvent of 2,2,6,6-tetramethyl-3,5-heptadione or 1,1,1,5,5,5-hexafluoroacetylacetone, and an acetone solvent of 4-chloromethyl styrene be subject to reaction toobtain an olefin monomer A containing beta-diketone dentate; dispersing template high-molecular microballoons in water, adding the olefin monomer A containing beta-diketone dentate, a copolyolefin monomer B, potassium persulfate, sodium peroxydisulfate or ammonium persulfate and divinylbenzene for copolymerization to obtain cage high-molecular microballoons containing beta-diketone ligand; and adding titanium tetrachloride, zirconium tetrachloride or vanadium tetrachloride at the temperature of -10 to -80 DEG C to obtain the cage high-molecular microballoon loading olefin polymerization catalyst containing beta-diketone metal complex. According to the invention, the spacing steric hindrance of the ligand, and the contact frequency and catalytic activity of the catalyst are improved.

The invention relates to a hierarchical porous molecular sieve and a catalyst prepared from the molecular sieve, specifically to a preparation method of a hierarchical porous Beta molecular sieve andan Ni catalyst thereof, and solves the problems of single pore structure, low utilization rate, incomplete opening, only an adsorption role, easy sintering, agglomeration and deactivation, and formation of carbon deposit. The scheme includes: stirring deionized water, sodium metaaluminate NaAlO2 and a dual template agent to obtain a clarified solution, adding fumed silica and performing stirring,then transferring the mixture into a polytetrafluoroethylene container, and conducting constant temperature heating and static crystallization in a reaction kettle, then performing cooling, and carrying out high temperature calcination, then taking nickel carbonate tetrahydrate, ammonium chloride and ammonia water, and performing stirring in deionized water, adding the molecular sieve and performing stirring, conducting hydrothermal synthesis for certain period of time, then conducting washing and pumping filtration, retaining the solid product, and conducting drying. The prepared hierarchicalporous Beta molecular sieve is rich in micro-mesoporous biphasic highly interconnected pore structure. The prepared catalyst is core-shell-like structure catalyst, and has high yield.

The invention relates to a stamping die. The stamping die comprises a lower die base, a sliding plate, an energy storage spring, a blocking mechanism, a U-shaped cover, two sliding blocks, two connecting rods, a second iron rod, two infusion tubes, two awning heads, an electric push rod, a movable plate and a first permanent magnet. According to the stamping die, a formed object carrying groove isused for intensively collecting a punched workpiece, so that the table surface of the lower die base is prevented from being polluted by the washed workpiece. A first iron rod and a second iron rod are attracted intermittently by utilizing the first permanent magnet. By means of the vertical movement of the second iron rod, the sliding blocks move back and forth, and cleaning liquid is extruded,so that the effect of automatic cleaning is achieved, and time and labor are not wasted. In addition, a sliding plate moves up and down through the first iron rod and enables the sliding plate to vibrate under the action of an energy storage spring. The contact frequency between the cleaning liquid and the washed workpiece is increased by using the tremor of the sliding plate. Under the action ofthe blocking mechanism, a dual cleaning program for soaking and rinsing the washed workpiece is achieved through the cleaning liquid, and the cleaning efficiency of the cleaning liquid is further improved.

The invention relates to a compound fertilizer preparation method for improving the utilization rate of the phosphorus element. The method comprises the following steps: mixing molten urea or molten ammonium nitrate with a potash fertilizer and a filler to obtain a mixture; carrying out blending chelating on one or a mixture of more of potassium fulvate, ammonium humate and monoammonium phosphate and the mixture; defoaming the above blend-chelated product by a defoaming agent; sending the defoamed product to a high tower mixing tank, and carrying out high tower granulation; processing a composition comprising, by weight, 5 parts of guar gum, 3 parts of nonionic polyacrylamide and 2 parts of potassium polyacrylate to prepare a liquid with 10% of the composition, and uniformly sprinkling the surface of a granulated granular fertilizer with the liquid to wrap the fertilizer. The compound fertilizer adopting potassium fulvate or ammonium humate as an organic matter has the advantages of high content of nutrients, good dissolvability, low water content, reduction of the frequency of contact of phosphate radicals with metal ions, reduction of the curing probability of phosphorus, and improvement of the utilization rate of a phosphate fertilizer.

Provided is a refrigerator (100) comprising an insulating box constituted of an insulating material and forming storage chambers therein, doors attached openably / closably to the openings of the insulating box, cooling means for cooling the air in the insulating box to generate cold air, and a cold air circulating passage for circulating the cold air between the storage chambers and the cooling means. The cold air circulating passage includes a carrier for carrying a photocatalyst, an irradiation means for irradiating the carrier with exciting light for exciting the photocatalyst; and an air blowing mechanism for forcibly blowing the cold air to the carrier.

The invention discloses a glass linear edge grinding machine for tempered glass production. The glass linear edge grinding machine for tempered glass production structurally comprises a support, shells, a first connection shaft, a first driving motor, a first belt, a grinding wheel set and a second belt; due to the fact that an arriving and departing device is arranged between the lower ends of the inner sides of the shells and a second driving motor is started to operate, a rotating wheel is driven to rotate under the effect of a rotating shaft; under the effect of gear teeth, a concentric-square-shaped frame and an installing plate are driven to move leftwards and rightwards in a reciprocating manner at the bottom plate position; a position clamping block and a sliding rod provide a stable force; and the beneficial effect that the contact frequency of the glass grinding position is improved so that the grinding efficiency of a glass grinding device can be improved is achieved; a fixed device is arranged at the top end of the arriving and departing device; due to the fact that glass is placed at clamping groove positions of a clamping and fixing plate, and an electric pushing rodperforms operating stabilizing, the stabilizing force is improved; clamping grooves are arranged in three layers, and efficiency is improved; and foam arranged on the inner wall of the clamping grooves provides vibration buffering protection, and the beneficial effect that the protecting degree is effectively provided is achieved.

The invention discloses a concrete anti-cracking performance testing device, relates to the technical field of concrete detection, and aims to solve the problems of more bubbles in concrete and relatively single internal environment in the testing process of an existing testing device. A base is installed in the middle of the interior of the shell, a transmission bottom plate is arranged at the bottom of the shell, tooth grooves are formed in the front end and the rear end of the interior of the transmission bottom plate, an inner mold is arranged in the middle of the upper end of the base, an outer mold is installed on the periphery of the upper end of the base, and the space between the inner mold and the outer mold is filled with a concrete test piece. A heating device is installed on one side of the interior of the shell, a fan is installed on one side of the heating device, a water mist outlet is fixedly formed in the other side of the interior of the shell, an atomization device is installed on the other side of the shell, an electronic magnifying lens is arranged above the shell, and a window is arranged in the middle of the upper end of the shell.

The invention discloses a carbide slag crushing device. The carbide slag crushing device comprises a base, a pre-drying assembly, a crushing assembly and a drying chamber, wherein a plurality of driving wheels are symmetrically arranged at four corners of the lower end surface of the base, an outer box shell is fixed on one side of the upper end surface of the base, a heat dissipation fan is arranged on one side of the interior of the outer box shell so that heat in the outer box shell can be discharged, the pre-drying assembly is further arranged in the outer box shell in a penetrating mode,the pre-drying assembly can carry out primary drying treatment on carbide slag placed in the pre-drying assembly, the discharging end of the pre-drying assembly communicates with the crushing assembly, a discharging port of the crushing assembly penetrates through the outer box shell and is connected with the drying chamber fixed on the upper end surface of the base, the drying chamber can carry out secondary drying on the crushed carbide slag, so that the fluidity of the carbide slag is improved, and the carbide slag is not easy to be compacted during stacking.