38results about How to "Low heating temperature" patented technology

The invention discloses a method for reducing a hot rolling pitted surface defect. The method comprises the following treatment steps: investigating main factors causing a pitted surface of a plate surface; specifying a specific implementation scheme according to the main factors; scale is removed through descaling; the generation of furnace-generated oxide scales is inhibited through adjustment; the roller-generated scale is reduced; according to the method, the dephosphorization water tank is added, the pressure of the dephosphorization water tank is controlled, so that the pressure of the dephosphorization water is improved, and the height and angle of the water nozzle are adjusted and optimized, so that the side pressure capacity of the vertical roll is improved, the generation of rough rolling oxide scale is reduced, and the roller material with good hot crack resistance is adopted, so that the production cost is reduced. A reasonable grinding system is adopted, residual cracks on the surface of the roller are thoroughly removed in time, lubricating rolling is adopted, the surface quality of the roller is improved, the unit rolling force of a rack is reduced, and therefore the situation that due to the fact that the unit rolling force is too large, microcracks on the surface of the roller expand, and roller scale is generated is effectively prevented.

The invention relates to the technical field of printing machines, and provides a constant-temperature ink-jet digital printing machine which comprises an ink pipe, a heat preservation pipe is arranged on the ink pipe in a sleeving mode, a heat preservation cavity is formed between the ink pipe and the heat preservation pipe, and a temperature control pipe is arranged on the ink pipe in a winding mode and located in the heat preservation cavity and located at one end of the ink pipe. According to the technical scheme, the problem that the printing effect of an industrial printer in the prior art is greatly influenced by the environment is solved.

The present application provides a temperature control system and method for a mushroom drying room. The method extracts the dynamic temperature of the mushroom drying room from the historical temperature, generates a control trajectory of the mushroom drying temperature according to the dynamic temperature; selects multiple temperature hysteresis characteristics according to the control gradient of the control trajectory, and then converts all temperature hysteresis characteristics into the hysteresis of the drying temperature of the mushroom drying room during the control process; determines the dynamic interference of humidity in the mushroom drying room to the temperature based on the temperature and humidity data, and determines the temperature robustness of the mushroom drying room by the dynamic interference; predicts the fluctuation of the drying temperature of the mushroom drying room by the hysteresis and temperature robustness, and obtains the temperature fluctuation deviation; when the temperature fluctuation deviation is greater than the preset deviation threshold, reduces the heating temperature of the auxiliary heating device in the mushroom drying room. The scheme of the present application can realize the temperature pre-control of the mushroom drying room to avoid hysteresis failure of the drying temperature control.

Provided is a method of separating a polyarylene sulfide by heating a polyarylene sulfide resin composition or a molded article thereof in a polar organic solvent to dissolve the polyarylene sulfide and subsequently performing solid-liquid separation with a stepwise change in the temperature. The present invention is aimed at separating and recovering a polyarylene sulfide from a polyarylene sulfide resin composition or a molded article thereof.

The invention belongs to the technical field of preparation of carbon fiber reinforced carbon-based composite materials, and discloses a tungsten modified C / C composite material and a preparation method thereof.The C / C composite material is placed on a filter membrane, suction filtration is conducted on turbid liquid of tungsten powder, a first composite structure formed by compositing the tungsten powder and the C / C composite material is obtained, and the first composite structure is dried; and performing carbon deposition densification on the dried first composite structure to obtain the tungsten modified C / C composite material. The tungsten is distributed in a zigzag shape at the interface of the coating and the substrate, so that the binding force between the coating and the substrate is obviously enhanced. In the initial stage of ablation, the coating tungsten transfers heat on the surface of the composite material to the matrix, and then the matrix tungsten transfers the heat into the material, so that concentrated thermal stress on the surface of the material is reduced. Along with gradual increase of the temperature, the matrix tungsten firstly chemically reacts with C to strongly absorb heat, and WO3 formed by surface oxidation evaporates to absorb heat, so that the heating rate and the ablation temperature of the surface of the composite material are reduced, and the ablation resistance of the material can be powerfully improved.

The utility model discloses vapor deposition equipment which comprises a reaction cavity, a gas spraying head arranged on the upper side of the interior of the reaction cavity, a base arranged opposite to the gas spraying head and an ammonia gas cracker, the upper surface of the base is used for bearing a substrate, the ammonia gas cracker comprises a laser transmitter and an ammonia gas input pipeline, and the ammonia gas input pipeline is used for inputting ammonia gas into the reaction cavity. The laser transmitter is arranged above the gas spraying head, and a gas outlet section of the ammonia gas input pipeline is arranged in the gas spraying head; the ammonia gas input pipeline transmits ammonia gas to a laser light path emitted by the laser emitter, the laser irradiates the ammonia gas to promote the cracking reaction of the ammonia gas, and groups generated by cracking of the ammonia gas are diffused to the surface of the substrate and are subjected to deposition reaction with reaction gas on the surface of the substrate; according to the scheme, sufficient ammonia cracking groups still react with the reaction gas at a relatively low heating temperature, so that the heating temperature of the heater is reduced, and the energy consumption is reduced.

The invention discloses a traditional Chinese medicine extracting solution concentration device, and relates to the technical field of traditional Chinese medicine extracting solution concentration, the traditional Chinese medicine extracting solution concentration device comprises a bottom plate, the top of the bottom plate is provided with a concentration assembly used for concentrating a traditional Chinese medicine extracting solution, and the concentration assembly is internally provided with a stirring assembly used for stirring traditional Chinese medicine liquid; the concentration assembly comprises a first-effect concentration tank body and a second-effect concentration tank body, and a centrifugal pump body is arranged on the outer surface of the first-effect concentration tank body. According to the traditional Chinese medicine extracting solution concentration device, the design that the first-effect concentration tank body and the second-effect concentration tank body are connected in series is adopted, a two-way flexible conveying system is constructed in cooperation with the centrifugal pump body, the flow dividing valve and the spiral pump, two-tank cooperative continuous concentration can be achieved, and liquid medicine can flow back and be concentrated again according to the concentration requirement; therefore, the quality of the traditional Chinese medicine extracting solution in the concentration process is effectively ensured.

This invention discloses a purification method for producing molybdenum-99 in a reactor using uranyl nitrate solution as nuclear fuel, relating to the field of radioisotope production technology. The method involves first adding an oxidant to the crude molybdenum-99 product solution produced by the solution reactor, oxidizing the crude molybdenum-99 product to MoO4. 2‑ The solution is then evaporated to dryness; a digestion solution is added to the evaporation residue to dissolve the impurities; a dissolving solution is added to the digested solid to dissolve the solid, which is then evaporated to dryness; finally, an alkaline solution is added to the evaporated solid to dissolve it, yielding a molybdenum-99 product solution that meets pharmacopoeia requirements. Compared to traditional methods for purifying molybdenum, this invention does not introduce new impurities, has a low heating temperature, low energy loss, is easy to operate in a hot chamber, and has a high impurity removal rate.

The invention discloses high-magnetic-induction oriented silicon steel, which contains Fe and inevitable impurities, and also contains the following chemical elements in percentage by mass: Clt; 0.001% of the total weight; 2.5 to 4.0% of Si; mn: 0.05 to 0.20%; slt; 0.0005%, 0.0005%; the content of Als is 0.015 to 0.045 percent; nlt; 0.005% of the total amount of the raw materials; 0.03% to 0.3% of Cu; and at least one of the following chemical elements: 0 < = 0.03% of P, 0.01-0.40% of Cr, 0.03-0.30% of Sn, 0.001-0.1% of Sb, 0 < = 0.008% of Ti, and 0.001-0.1% of Nb. The invention also discloses a manufacturing method of the silicon steel, which comprises the following steps of: smelting and continuously casting and rolling a thin slab to obtain the thin slab; plate blank heating and hot rolling; normalizing and annealing; cold rolling; decarburization annealing; directly coating an annealing isolating agent without nitriding annealing, and carrying out high-temperature annealing; and insulating coating and flattening annealing.

The utility model discloses waste heat recycling type film laminating equipment, which relates to the technical field of film laminating machines, and is characterized in that an equipment body comprises a preheating chamber, a heating chamber, a heat preservation chamber, a hot pressing roller and a heat recovery chamber which are sequentially arranged along the conveying direction of a film, and a plurality of heat conduction rollers which are respectively propped against the film and fabric are arranged in the heat recovery chamber; the two width sides of the preheating chamber are fixedly connected with heat conduction pipes communicating with the preheating chamber, the ends, away from the heat recovery chamber, of the heat conduction pipes are fixedly connected to the side wall in the width direction of the preheating chamber and communicate with the preheating chamber, and the heat conduction pipes drive hot air in the heat recovery chamber to enter the preheating chamber. According to the utility model, the temperature in the fabric and the film can be quickly guided out through the plurality of heat conduction rollers and dissipated in the heat recovery chamber, and the hot air in the heat recovery chamber is guided into the preheating chamber through the two heat conduction pipes which are obliquely arranged upwards, so that the film is preheated before entering the heating chamber; and therefore, the energy consumption of the equipment body during processing is reduced by recycling the waste heat.

The utility model relates to the technical field of vulcanizing machines, in particular to a heating device of a plate vulcanizing machine. The plate vulcanizing machine heating device comprises a heating part and a soaking part, the heating part comprises a plurality of heating plates, the soaking part comprises a soaking plate and a heat dissipation assembly, the heating plates are detachably connected with the soaking plate, the heating plates are attached to the back of the soaking plate, and a hose is connected between the heat dissipation assembly and the soaking plate. The heating device comprises the soaking part and the heating part, the soaking plate is heated through the heating plate, local overheating of the press vulcanizer is prevented, the heating plate is detachably connected with the soaking part, and the single heating part can be conveniently maintained and replaced.

The invention relates to the technical field of chemical production, and discloses a drying device for producing lauryl sodium sulfate, which comprises a packaging supporting mechanism, a material guiding and crushing mechanism and a hydrothermal drying mechanism are respectively arranged in the packaging supporting mechanism, and the material guiding and crushing mechanism is movably connected with the hydrothermal drying mechanism; a closed feeding mechanism is arranged on the top of the packaging supporting mechanism, and a moisture and peculiar smell discharging mechanism is installed on the surface of the packaging supporting mechanism. According to the drying device for producing lauryl sodium sulfate, the packaging supporting mechanism, the material guiding and crushing mechanism, the hydrothermal drying mechanism, the closed feeding mechanism and the moisture and peculiar smell discharging mechanism are arranged; the lauryl sodium sulfate material can be heated through the continuous temperature lower than 100 DEG C generated by the hydrothermal drying mechanism and conduction of the material guiding and crushing mechanism, it is guaranteed that the lauryl sodium sulfate is not decomposed at high temperature, meanwhile, drying of the lauryl sodium sulfate is guaranteed, and the shelf life of the lauryl sodium sulfate after sealed packaging is further guaranteed.

The present disclosure relates to a charging control circuit, method, device and storage medium. The charging control method comprises: determining a first temperature corresponding to a terminal; determining a second temperature corresponding to each charge pump chip in a charge pump chip set included in the terminal, and determining a target charging current to be distributed to the charge pump chip based on the first temperature and the second temperature; and adjusting the resistance value of a resistor connected in series with each charge pump chip in the charge pump chip set to drive the current of the charge pump chip to reach the target charging current. The charging control method provided by the embodiments of the present disclosure can reduce the charging temperature and improve the charging efficiency.

The utility model relates to the technical field of bus processing, in particular to a blasting bus processing wire drawing device which comprises a bus processing table, a first shaft seat fixedly mounted on the left side of the bus processing table, a finished wire cylinder rotatably mounted on the inner side of the first shaft seat, a mounting block arranged on the side edge of the finished wire cylinder, and a heating cylinder fixedly mounted on the mounting block. An infrared thermometer is installed on the side edge of the heating cylinder, a screw joint table is arranged on the side edge of the heating cylinder, and a wire drawing machining head is installed on the screw joint table in a screw joint mode. According to the utility model, the infrared thermometer is arranged, so that finished copper wires heated from the side edge of the heating cylinder can be monitored in real time, the power of the electric heating wire in the heating cylinder can be regulated and controlled in real time through temperature monitoring, the heating temperature of the finished copper wires is ensured to be proper, and the production quality of subsequent buses is ensured; and the buses processed by the wire drawing processing head are uniformly wound on the winding drum layer by layer, so that the processed buses are wound more regularly, and the practicability is enhanced.

The utility model relates to the technical field of hydrometallurgy, in particular to a silver electrolysis conductive device which comprises an electrolytic bath, a plurality of cathode plates and a plurality of anode rods, a first conductive plate and a second conductive plate are arranged on the two sides of the upper end of the electrolytic bath, and a plurality of arc-shaped grooves matched with the anode rods are formed in the second conductive plate; one end of the anode rod is clamped in the arc-shaped groove, the other end of the anode rod is provided with an insulating cap I, a plurality of silver hooks are arranged on the anode rod, the upper ends of the silver hooks are lapped on the outer side of the anode rod, and the lower ends of the silver hooks are jointly connected with an anode plate; a first connecting rod and a second connecting rod are arranged on the two sides of the upper end of the negative plate respectively, the first connecting rod is communicated with the first conductive plate, a second insulating cap is arranged on the outer side of the second connecting rod in a sleeved mode, and the second insulating cap is erected on the second conductive plate. And the anode rods are in contact communication with the arc-shaped grooves, so that the contact area is increased, and the current efficiency is effectively improved.

The invention discloses a large-current, flexible charging pile fast-charging external connection cable and a preparation method thereof. The outer layer of fluoroplastic of the cooling tube of the main core wire plays a role of heat resistance and insulation, and the inner layer of foamed polyethylene with a foaming degree of 65-85% not only increases the volume of the coolant but also plays an effective supporting role. More importantly, when preparing the hollow flexible conductor of the main core wire, due to the improved compressive strength of the cooling tube, after all the conductor wires are grouped and bundled, the cooling tube can be used as a support and then twisted to form a wire, which can effectively increase the softness of the cable. The cable is easier to install than the cable of a conventional cooling device, has a smaller bending radius and a larger current carrying capacity; in addition, a temperature-sensitive optical fiber is added during the molding of the hollow flexible conductor, and the coolant flow rate can be controlled according to the feedback temperature to keep the cable temperature constant; the above multiple effects greatly improve the charging speed of the cable, greatly improve the heating problem of the cable, effectively reduce the insulation aging speed, increase the service life of the cable, and make the product more flexible.

The invention discloses alloy steel 40Cr for a hot-rolled plate mechanical structure and a preparation method of the alloy steel 40Cr, the alloy steel 40Cr comprises the following components: 0.375-0.39% of C, 0.18-0.25% of Si, 0.55-0.65% of Mn, 0.010-0.040% of Al, 0.85-0.95% of Cr, less than or equal to 0.015% of P, less than or equal to 0.005% of S and the balance of iron and unavoidable impurity elements, the thickness of the alloy steel 40Cr for the hot-rolled plate mechanical structure is 2-16 mm, the width is 900-1500 mm, the yield strength is less than or equal to 500 MPa, the A-D type inclusions are less than or equal to 1.5, the DS type inclusions are less than or equal to 1.0, and the balance is Fe. A fully decarburized layer is not allowed to appear on the surface of the steel plate, the thickness of a single-face semi-decarburized layer is not larger than 1% of the nominal thickness, and the product is excellent in plate shape, roll shape, surface quality, machining performance and the like and is highly accepted by users.

The invention belongs to the technical field of ceramic materials, and particularly relates to a carbon-ceramic composite material and a preparation method thereof. The preparation method of the carbon-ceramic composite material provided by the invention comprises the following steps: taking a blank body, coating the surface of the blank body with coating powder, and carrying out compression molding to prepare a coating prefabricated body; the coating prefabricated body is cured at the temperature of 160-200 DEG C, and a coated disc blank is prepared; placing the silicon / aluminum composite material on the upper surface and the lower surface of the coated disc blank body, performing carbonization treatment at the temperature of 25-900 DEG C, and performing siliconizing treatment at the temperature of 1400-1500 DEG C to prepare a carbon-ceramic composite material; the silicon / aluminum composite material comprises a base body and a coating layer coating the surface of the base body, and the base body comprises silicon; the coating layer comprises thermosetting resin, graphite, aluminum elementary substance and silicon carbide. According to the preparation method, the heating temperature and the cost in the melt siliconizing process can be effectively reduced, and the silicon infiltrated into the resin-based blank can be ensured to be uniformly dispersed.

The utility model discloses POE (Power Over Ethernet) equipment for a thin client and a thin client host. The POE equipment comprises a POE device and a heat dissipation assembly, the heat dissipation assembly is arranged on the POE device, and the POE device comprises a control chip and a POE power supply switching circuit; the output end of the POE power supply switching circuit is electrically connected with the power supply output port of the POE device; and the input end of the POE power supply switching circuit is used for accessing an adapter power supply detection signal of the client host. The POE power supply switching circuit is arranged, after it is detected that the client host accesses the adapter for power supply, POE power supply output is cut off, the POE device is matched with the heat dissipation assembly, the heating temperature of the POE device in the operation process is reduced, heat loss is reduced, flexible switching between adapter power supply and POE power supply is achieved, and resource waste is avoided.

The invention discloses a low-cost X80 pipeline steel thick plate and an efficient preparation method thereof, and belongs to the technical field of metallurgy. The efficient preparation method comprises the following steps: smelting and heat treatment: smelting according to designed chemical components, continuously casting to obtain a steel billet, and heating the steel billet; non-temperature-holding continuous rolling: carrying out multi-pass non-temperature-holding continuous rolling on the heated steel billet, and carrying out dephosphorization on the plate blank before middle part pass rolling to obtain a steel plate; the cooling speed is controlled, the rolled steel plate is subjected to ultra-fast cooling, and the low-cost X80 pipeline steel thick plate is obtained; the structure is ferrite (15 vol.%-25 vol.%) and bainite, and the average ferrite grain diameter is 4 [mu] m-7.5 [mu] m. Precious metals such as V, Ni and Mo in the steel are omitted, the cost of the X80 pipeline steel is remarkably reduced, the heating temperature of a casting blank is low, and the heating energy consumption is remarkably reduced; and temperature-waiting-free continuous rolling is achieved, and the rolling efficiency is remarkably improved.

The invention provides hyperbranched polyamide-functionalized graphene oxide (HPA-GO) modified bismaleimide (BMI) resin, and relates to the technical field of bismaleimide resin.The HPA-GO modified BMI resin is prepared from DMF (N, N-dimethylformamide) dispersion liquid of HPA-GO, diphenyl bismaleimide, deionized water and diallyl bisphenol A. The preparation method comprises the steps that the BMI resin is prepared from the following raw materials, the preparation method comprises the following steps: reacting diphenyl bismaleimide with DMF dispersion liquid of HPA-GO, washing, carrying out suction filtration, drying, adding diallyl bisphenol A, reacting, and carrying out stepped curing to obtain the HPA-GO modified BMI resin.

The utility model relates to the technical field of phosphate fertilizer processing equipment, in particular to a phosphate fertilizer wrapping agent loading and conveying device which is formed by connecting a first straight pipe, a second straight pipe, a third straight pipe, a backflow inclined pipe, a first loading inclined pipe, a second loading inclined pipe, a third loading inclined pipe, a first valve and a second valve, and one end of the second straight pipe is connected into a reaction kettle. According to the phosphatic fertilizer wrapping agent loading and conveying device, by introducing the backflow inclined pipe, it is ensured that after loading is completed, the remaining wrapping agent in the pipeline can rapidly flow back into the reaction kettle, and long-time staying and condensation of materials in the pipeline are avoided. By means of the design, the residual quantity of the materials in the pipeline is remarkably reduced, and therefore the risk that the materials form coagulation blocks in the pipeline is reduced. And due to the ingenious arrangement of the loading inclined pipe and the return pipe, when the loading operation is carried out again, the pipeline does not need to be preheated for a long time to melt condensed materials. Therefore, the preparation time before loading is greatly shortened, and the overall working efficiency is improved.

The invention provides an electric heating layer with a PTC (Positive Temperature Coefficient) effect as well as a preparation method and application thereof, the electric heating layer comprises an electric heating material, and the electric heating material comprises a conductive component, a substance containing hydroxyl and / or carboxyl and a filler with the PTC effect; wherein the filler with the PTC effect is deposited on the surface of the conductive component, and is connected with the conductive component through a substance containing hydroxyl and / or carboxyl. The electric heating layer has the characteristics of self-limiting temperature and overheating protection, and can realize the reduction of heating power and the reduction of heating temperature to achieve the self-limiting temperature effect and prevent extra safety risks caused by over-high temperature through the step increase of resistance value under the condition of over-high heating temperature.

The invention discloses a surface treatment method for enhancing the surface friction and thermal fatigue performance of die steel in the technical field of die steel surface strengthening treatment.The surface treatment method comprises the steps that firstly, attachments on the surface of the die steel are removed, polishing is conducted, so that the surface of the die steel is smooth, and then the die steel is put into a certain proportion of alkaline water flushing liquid to be soaked; washing with clear water after soaking, and ensuring that the washing liquid is completely removed; secondly, the cleaned die steel is put into acid water of a certain proportion to be soaked, the die steel is washed with clear water after being soaked, it is ensured that washing liquid and attachments are completely removed, then water drops on the surface of the die steel are wiped with soft cloth, and the die steel is put into a drying machine to be dried; the dried die steel is put into cold spraying equipment, and cold spraying is carried out after spraying process parameters are set; and the die steel subjected to cold spraying is put into a resistance furnace to be subjected to diffusion treatment, argon is introduced for protection in the diffusion process, and the needed die steel is obtained after diffusion is completed.

The present invention relates to a method for producing low-temperature Hi-B steel with enhanced AlN suppression capability, comprising the steps of calculating the AlN solid solution temperature and the AlN solid solution amount at the heating temperature of the billet through a hot rolling process, wherein the billet heating temperature is 1199-1229°C, the heating time is 120-135min, the temperature of 1050-1150°C when the austenite phase content is the largest is selected as the normalizing heating temperature, the holding time is 2-4min, and then air cooling is started, and when the air cooling reaches 890±10°C, quenching is started in 95-100°C water for rapid cooling, and the infiltration The nitrogen process adjusts the actual nitrogen content infiltrated in the nitriding process to ensure the constancy of the total amount of innate and acquired AlN inhibitors. The nitriding temperature is 750-820°C, the nitriding time is determined according to the N content to be infiltrated, and the nitriding atmosphere is dry 75% H2+25% N2 plus 4-14% NH3. The present invention adjusts the N content infiltrated in the nitriding annealing process according to the Al and N contents in the low-temperature Hi-B steel composition and the ingot heating temperature to ensure the stability of the total amount of innate and acquired nitride inhibitors and the method of inhibition ability.

Provided is a method of separating a polyarylene sulfide by heating a polyarylene sulfide resin composition or a molded article thereof in a polar organic solvent to dissolve the polyarylene sulfide and subsequently performing solid-liquid separation with a stepwise change in the temperature. The present invention is aimed at separating and recovering a polyarylene sulfide from a polyarylene sulfide resin composition or a molded article thereof.

This application relates to a polymer scintillation fiber drawing furnace, a drawing method, and a polymer scintillation fiber, belonging to the field of fiber optic fabrication technology. The polymer scintillation fiber drawing furnace of this application includes a furnace body and an infrared heating unit. The furnace body has a heating cavity inside, with an inlet and an outlet at each end communicating with the heating cavity. This allows a polymer scintillation fiber preform to be inserted through the inlet and the polymer scintillation fiber to be drawn out through the outlet. The infrared heating unit is located around the periphery of the heating cavity, enabling heating of a predetermined range of the polymer scintillation fiber preform from different peripheral positions. This reduces the decomposition of fluorescent dyes in the scintillation fiber, ensuring the sensitivity of the scintillation fiber in detecting high-energy radiation. This application also discloses a polymer scintillation fiber drawing method and a polymer scintillation fiber.

According to the extrusion die and method for controlling the grain size of the 6-series aluminum alloy mobile phone plate, by means of the die pressurization method, grain crushing is more thorough in the casting rod extrusion process, then a finer grain structure is obtained, the product discharging temperature is increased in the die pressurization mode, the product quenching effect is improved, and the product quality is improved. Compared with a traditional flat-die-like die, the grain size of the mobile phone plate profile is reduced by 35%-45%, the expectation that the average grain size is smaller than 150 micrometers is achieved, and the product strength and oxidation performance are more stable and excellent.

The invention provides a two-way fluid management waste-liquid-bag-free automatic peritoneal dialysis machine, and relates to the technical field of dialysis equipment, a support is sequentially provided with a stock solution bag, a heating bag and a waste liquid bag from top to bottom; a control part is further arranged on the support, the control part is provided with a first flow channel and a second flow channel which are spaced from each other inside and outside, and when waste liquid in the body of a patient is discharged along the first flow channel, dialysate in one stock solution bag is discharged to the heating bag along the second flow channel to be heated; the waste liquid in the first flow channel and the dialysate in the second flow channel can exchange heat, so that the waste heat of the waste liquid is utilized to preheat the dialysate which does not enter the heating bag, the heating temperature which needs to be set by the heating bag is reduced, local overheating of the heating bag is avoided to a certain extent, and the stability of medicine components in the dialysate is guaranteed.

This invention relates to the field of chemical production technology and discloses a drying apparatus for producing sodium dodecyl sulfate, comprising: a packaging support mechanism, wherein a material guiding and fragmenting mechanism and a hydrothermal drying mechanism are respectively installed inside the packaging support mechanism, and the material guiding and fragmenting mechanism is movably connected to the hydrothermal drying mechanism; a closed feeding mechanism is provided on the top of the packaging support mechanism; and a moisture and odor emission mechanism is installed on the surface of the packaging support mechanism. This drying apparatus for producing sodium dodecyl sulfate, through the packaging support mechanism, the material guiding and fragmenting mechanism, the hydrothermal drying mechanism, the closed feeding mechanism, and the moisture and odor emission mechanism, can heat the sodium dodecyl sulfate material by generating a temperature continuously below 100 degrees Celsius through the hydrothermal drying mechanism, which is then conducted through the material guiding and fragmenting mechanism. This ensures that the sodium dodecyl sulfate is not decomposed by high temperature while ensuring its drying, further guaranteeing the shelf life of the sealed packaged sodium dodecyl sulfate.