750results about How to "Increase contact time" patented technology

The invention discloses an acetic anhydride production waste gas neutralization treatment device and method, and relates to the technical field of waste gas neutralization treatment.The acetic anhydride production waste gas neutralization treatment device comprises a treatment tank, a gas inlet pipe is fixedly installed at the bottom of the treatment tank, gas holes are formed in the surface of the gas inlet pipe, and a gas outlet pipe is fixedly installed at the top of the treatment tank; the waste gas neutralizing device is arranged in the treatment tank, and the waste gas neutralizing device comprises a motor, a connecting pipe, a fixing frame, a water spraying pipe, a reciprocating screw rod, a threaded plate, a fixing rod, an elastic telescopic rod, an activated carbon plate, a long rod, a universal wheel and an elastic telescopic scraper plate; the reciprocating lead screw rotates to drive the elastic telescopic rod to rotate, the elastic telescopic rod rotates to drive the activated carbon plate to rotate, through rotation of the activated carbon plate, the plate face can make uniform contact with pollutants in waste gas, saturation and aging of a local area are avoided, and the adsorption efficiency of activated carbon is improved.

The invention relates to the technical field of industrial waste gas purification, in particular to an industrial waste gas purification ecological protection device which comprises a machine body, a purification liquid cavity and a dust collection cavity are integrally formed in the middle of the machine body, an annular limiting groove is formed in the inner wall of the machine body, and an impurity temporary storage cavity is integrally formed in the bottom end of the machine body; an impurity separation assembly is arranged at the bottom of the inner side of the machine body, and the annular limiting groove is slidably connected with the driving assembly. According to the improved ecological protection device, waste gas entering the machine body is subjected to primary impurity removal through the impurity separation assembly, so that the filtering pressure of a filter screen is reduced, a cleaning piece and an impurity cleaning plate are driven to rotate, impurities in the filter screen and an impurity temporary storage cavity are cleaned, meanwhile, a driving assembly can further drive a spraying turbulent flow assembly to operate, and the cleaning effect is improved. The rising speed of the waste gas is reduced while purifying liquid is sprayed out of the industrial waste gas, the contact time of the purifying liquid and the waste gas is prolonged, and the purifying effect on the industrial waste gas is improved.

The invention relates to a water inlet separation net, a reverse osmosis membrane unit, a reverse osmosis membrane element, a filter element and a filter system in the technical field of reverse osmosis membranes. The reverse osmosis membrane unit comprises a water inlet separation net body and a reverse osmosis membrane attached to the reverse osmosis membrane element; the water inlet separation net body is provided with water blocking parts which are arranged at intervals and in a staggered mode in the extending direction of the water inlet separation net body, so that the water inlet separation net forms a water diversion flow channel which is continuously bent; and the distance between every two adjacent water blocking parts is reduced in sequence. The water diversion flow channel is designed to be bent, and the distance between every two adjacent water blocking parts is sequentially reduced, so that the flow speed of raw water is gradually increased, on the basis that the water diversion flow channel is designed to be relatively long, the flow speed of the raw water can be maintained to be gradually increased, the raw water spirally flows in the water diversion flow channel, and the flow area of the raw water is gradually reduced; the shear flow velocity of the concentrated water end is improved, and concentration polarization caused by poor water quality of the concentrated water end is weakened, so that the reverse osmosis membrane can more effectively resist pollution and blockage.

The method comprises the following steps: (1) putting 1-vinyl imidazole into a flask containing N, N-dimethylformamide and D314 type resin, adding an initiator, carrying out a grafting reaction under the action of the initiator, and obtaining imidazolyl anion exchange resin after the reaction is finished; (2) pre-treating the imidazolyl anion exchange resin, and then adsorbing a rhenium-containing solution to be treated by adopting the pre-treated imidazolyl anion exchange resin; and (3) washing the imidazolyl anion exchange resin subjected to saturated adsorption in the step (2) by using ultrapure water, and then analyzing by using ammonia water to obtain a high-purity rhenium-containing solution. According to the method, the imidazolyl anion exchange resin is synthesized, the imidazolyl anion exchange resin has excellent selective adsorption capacity on rhenate ions, and efficient separation of rhenium and other impurities can be achieved when the imidazolyl anion exchange resin is applied to the rhenium-containing solution.

The invention relates to the technical field of coal dressing, and provides a dechlorination jigging device and process for coal dressing, and the dechlorination jigging device and process comprises the following steps: S1, pretreatment: immersing high-chlorine raw coal in water for conveying; s2, jigging separation: the raw coal is subjected to jigging separation, in a frequency period, the rest period accounts for 30%-50% of the whole frequency period, and coal products and gangue are obtained after separation; s3, conveying and dehydration: spraying water is added when the coal product subjected to jigging separation is conveyed, after spraying is completed, the coal product is dehydrated, dechlorination of the coal product is completed, and a dechlorinated coal product is obtained; and S4, desulfurization: carrying out desulfurization treatment on the dechlorinated coal product to obtain a final refined product. By means of the technical scheme, the problem that chlorine elements in raw coal are inconvenient to efficiently remove through a coal dressing process in the prior art is solved.

The invention relates to the technical field of air conditioner heat exchangers, and discloses a heat exchanger assembly for an air conditioner, which realizes uniform distribution of steam at an inlet position, ensures uniform contact between the steam and a heat exchange tube subsequently, and realizes efficient heat exchange between a heat source and a cooling liquid. The baffle plates are arranged in an up-and-down staggered mode to achieve vertical S-shaped flow of steam and are arranged in a left-and-right staggered mode, the two side faces of each spoiler are inclined faces, transverse S-shaped flow of the steam is achieved, it is guaranteed that the contact area of the steam and the heat exchange pipes is larger, the heat exchange effect is good, the spoiler blocks can destroy the boundary layer of steam flow, disturbance on steam flow is increased, and the heat exchange efficiency is improved. The circulation speed during steam heat exchange is slowed down, the contact time of the steam and the heat exchange pipes is prolonged, and the heat exchange effect is further improved; and when condensate water generated after heat exchange is finished flows out, the condensate water is filtered firstly, the heat conduction pipe is prevented from being blocked, the condensate water exchanges heat with the introduced cooling liquid after entering the heat conduction pipe, preheating of the cooling liquid is achieved, and energy waste is reduced.

The invention provides a gas-solid fluidized bed reactor and method for photo-thermal coupling catalysis of CO2 reduction. The gas-solid fluidized bed reactor comprises a reactor main body, a gas inlet base and a heating part, a reaction cavity in the reactor main body is an inverted circular truncated cone-shaped cavity, and a quartz light window is arranged at the top of the reaction cavity; a columnar gas channel is arranged in the gas inlet base; the bottom of the reactor main body is connected with the top of the air inlet base, and a porous sieve plate is arranged between the reactor main body and the air inlet base; the bottom of the inverted circular truncated cone-shaped cavity is communicated with the top of the columnar gas channel through a porous sieve plate; the heating part is used for providing heat for the reactor main body and the air inlet base. According to the photo-thermal reactor, light blocking caused by catalyst accumulation of a traditional photo-thermal reactor is reduced, the contact area of reactant gas and the catalyst is effectively increased, and the efficiency of the catalyst is fully exerted.

The anti-overflow pot cover for the electric cooker comprises a pot cover body, a connecting cover is slidably connected into the pot cover body, an air bag is arranged at the top of the connecting cover and located in the pot cover body, guide pipes are arranged in the pot cover body and located on the two sides of the connecting cover, and the guide pipes extend into the pot cover body to be connected with the air bag. A pressure relief assembly is arranged on the top of the pot cover body. The pressure relief assembly is used for conducting pressure relief treatment on air in the air bag and composed of a connecting shell, a pressure relief cylinder, a cooling pipe, a movable sleeve, a spiral groove, a pressure relief hole and a compression spring, the connecting shell is located at the top of the pot cover body, the pressure relief cylinder is located at the end, away from the pot cover body, of the connecting shell, and the cooling pipe is located in the connecting shell. The electric rice cooker has the advantages that through the design of the pressure relief assembly and the connecting cover, gas in the electric rice cooker can be subjected to pressure relief treatment, and rice water is prevented from overflowing upwards due to the fact that the pressure of the gas is too large.

The invention relates to the technical field of artificial board preparation, and particularly discloses efficient wood chip hot air drying equipment which comprises a drying cylinder and a hot air source, discs are arranged at the centers of the two end faces of the drying cylinder, a hot air guide pipe connected with the hot air source is arranged in the drying cylinder in a penetrating mode, and a hollow rotating pipe is rotatably arranged on the outer wall of the hot air guide pipe in an attached mode. A plurality of scraping plates are uniformly arranged on the hollow rotating pipe, a blanking port is formed in one end, close to the hollow rotating pipe, of each scraping plate, and a scattering plate for sealing the lower end of the blanking port is rotationally connected to the lower end, close to one end of the hollow rotating pipe, of each blanking port through a pin shaft; according to the efficient hot air drying equipment for the wood chips, the internal structure of a traditional roller drying machine is changed, the wood chips can be dried faster, the drying uniformity of all the wood chips can be improved, the drying effect of all the wood chips is guaranteed, compared with direct introduction of axial hot air, the contact time of the hot air and the wood chips can be prolonged, and the drying efficiency of the wood chips is improved. And heat energy loss in the hot air drying process is reduced.

The utility model provides an activated carbon purification device for waste gas treatment, which comprises a purification box, a gas inlet port is arranged on one side of the purification box, a gas outlet port is arranged on the other side of the purification box, hinges are matched on two sides of one end of the purification box, a folding sealing door is matched on the hinges, and a plurality of partition plates are arranged in the purification box. The purification box is divided into a plurality of purification chambers by the partition plates, and a group of purification mechanisms are arranged in each purification chamber, so that the purification box has the advantages that waste gas enters from the gas inlet port and is discharged from the gas outlet port to achieve the purpose of passing through, the waste gas passes through the plurality of purification chambers in the snake-shaped trend, the contact time of the waste gas and the honeycomb-shaped activated carbon block can be prolonged, and the purification efficiency is improved. And moreover, the effect of unstable purification caused by concentrated trend can be reduced, the honeycomb-shaped activated carbon block has better disassembly and assembly efficiency, and the operation is relatively convenient, so that the aim of ensuring the purification stability by better replacement frequency is achieved.

The invention discloses a regeneration method and device for waste activated carbon powder, and relates to the technical field of regeneration of activated carbon powder. A secondary granulation assembly is arranged on the right side of the primary granulation assembly; a drying assembly is arranged on the right side of the secondary granulation assembly; a communicating pipeline is arranged between the top of the drying assembly and the top of the granulation assembly; a screening assembly is arranged on the right side of the drying assembly; a mixing assembly is arranged at the left bottom of the conveying assembly. The bonding effect between the material and the binder is further improved by means of the dredging effect of the material guide rod, and meanwhile, the limiting ring promotes the elastic scraping strip to be always tightly attached to the inner wall of the mixing assembly, so that activated carbon powder is prevented from being attached to the inner wall of the mixing assembly due to high humidity; and resource loss caused by the fact that materials are difficult to adhere to the composite adhesive and remain in the mixing assembly is avoided.

The utility model belongs to the technical field of separating devices, and particularly relates to a chemical rectifying tower which comprises a tower body, a gas outlet pipe arranged at the top end of the tower body, a liquid outlet pipe arranged at the bottom end of the tower body, a gas inlet pipe and a liquid inlet pipe arranged on two sides of the tower body respectively, a plurality of groups of tower trays arranged inside the tower body, and a group of connecting plates arranged below each group of tower trays in a matching manner, the diameter of the tower tray and the diameter of the connecting plate are matched with the inner diameter of the tower body, a plurality of groups of through holes are formed in the tower tray in a penetrating manner, a plurality of groups of connecting rods matched with the through holes are arranged on the top surface of the connecting plate, stop blocks are arranged at the top ends of the connecting rods, and a screw rod is rotationally arranged in the tower body and is in threaded connection with the connecting plate; a guide rod is fixedly arranged in the tower body, the tower tray is fixedly arranged on the guide rod through a bolt, and the bottom end of the screw rod and the bottom end of the guide rod are positioned below the connecting plate at the bottommost layer. According to the utility model, enough contact time of gas and liquid in the rectifying tower can be ensured, and the separation and purification effects of target substances are improved.

The invention discloses an anesthetic gas uniform mixing and anesthetic gas concentration detection device, and relates to the technical field of medical apparatus and instruments. The anesthetic gas concentration detection device comprises a device main body, one side of the device main body is connected with a concentration detection equipment main body through a pipeline, a detection module for detecting the concentration of anesthetic gas is arranged in the concentration detection equipment main body, and a gas mixing device is arranged in the device main body; the gas mixing device comprises a first L-shaped gas pipe, a second L-shaped gas pipe, a T-shaped pipe, a rotating rod and two through hole cylinders. Through the arrangement of the gas mixing device, anesthetic gas and air are rotationally sprayed into the T-shaped pipe through the two through hole cylinders, turbulent flow or airflow disturbance can be generated in the T-shaped pipe, mixing of the gas is facilitated through the disturbance, the anesthetic gas and the air are mixed more evenly, and the anesthetic effect is improved. Therefore, the concentration of the anesthetic gas can be conveniently detected by the concentration detection equipment body in the follow-up process.

The invention discloses a livestock and poultry manure rotten fungus rapid fertilization device which comprises a shell, a fermentation tank is arranged in the shell, the outer side of the fermentation tank is fixedly connected with a feeding pipe, one end of the feeding pipe is fixedly connected with a separation cylinder, a separation assembly used for separating livestock and poultry manure solid and liquid is arranged in the separation cylinder, and the separation assembly comprises a cylinder body; the side face of the barrel is fixedly connected with a rotary drum, a liquid collecting cavity is formed in the outer side of the rotary drum, a heating assembly used for heating livestock and poultry manure is arranged in the fermentation tank and comprises a rotating shaft, the bottom of the fermentation tank is fixedly connected with a discharging pipe, and a tail gas treatment box is arranged in the shell. The solid-liquid separation efficiency in the livestock and poultry manure is improved through the separation assembly, the problem that liquid flows unsmoothly due to blockage of filter holes is avoided, the heating efficiency of the livestock and poultry manure is improved through the heating assembly, meanwhile, the contact time of tail gas and adsorption liquid is prolonged through the tail gas treatment assembly, and pollution of the whole fertilizing device to the environment is reduced.

The invention belongs to the field of tea production, and particularly relates to a conveying device for tea production and a conveying method thereof.The conveying device comprises a conveyor, a conveying box is arranged at the top of the conveyor, two supporting plates are symmetrically and fixedly connected to the bottom of the conveying box, and two guide plates are symmetrically and fixedly connected to the top of the conveying box; according to the conveying device for tea production and the conveying method of the conveying device, hot air is discharged from a plurality of first air outlets through the arranged first flow guide plate, the hot air makes better contact with tea leaves while the tea leaves are stirred through the stirring plate, the hot air is discharged from a plurality of second air outlets through the arranged second flow guide plate, and the tea leaves are better in contact with the tea leaves. Through wrapping of the gas gathering plate and the stirring plate, hot gas is prevented from floating upwards too fast, the contact time of the hot gas and the tea leaves is longer, when the stirred tea leaves slide to the included angle between the gas gathering plate and the stirring plate, the double faces of the tea leaves can be dried at the same time, and the drying effect is higher and more uniform.

The invention discloses a printing and dyeing wastewater treatment and deodorization device, and particularly relates to the technical field of wastewater treatment.The printing and dyeing wastewater treatment and deodorization device comprises a first shell, a second shell is fixedly connected to the right end of the first shell, a wastewater treatment assembly is arranged on the inner surface of the first shell, and an odor treatment assembly is arranged on the inner surface of the second shell. According to the printing and dyeing wastewater treatment and deodorization device disclosed by the invention, the filtering mechanism and the biological treatment mechanism are arranged, so that filtered impurities can be automatically cleaned in a preliminary filtering process of wastewater, and meanwhile, the wastewater flows along an S-shaped path during biological treatment, so that the wastewater can be always in a flowing state; according to the present invention, the retention time of the wastewater can be prolonged so as to prolong the contact time of the wastewater and the biological membrane, such that the microorganisms can completely degrade the organic matters in the wastewater, the treatment efficiency can be improved, the generated biological impurities can be effectively cleaned in the rotation manner, the permeability of the membrane can be maintained, and the wastewater treatment efficiency can be improved.

The present invention discloses a rectification system for chemical industry production processing, and relates to the technical field of rectification towers, the rectification system comprises a housing, the side portion of the housing is communicated with a feed pipe, the rectification system further comprises: a filter, the filter is installed on the ground, and the input end is communicated with the bottom of the housing; the reboiling assembly is installed on the ground through a support, the input end of the reboiling assembly is communicated with the output end of the filter, and the output end of the reboiling assembly is communicated with the bottom of the shell; the input end of the condensation backflow assembly is communicated with the top of the shell. By arranging the unblocking mechanism, when the driving assembly works, the rotating rod rotates to drive the mounting strip to rotate and the ventilation component to work, steam is sucked from the lower portion of the tower plate and finally is horizontally discharged through the multiple air outlet pipes, circulation of the steam is accelerated, meanwhile, bubbles horizontally discharged through the air outlet pipes can impact bubbles discharged through the through holes, and the effect of blocking is improved. The movement track of the bubbles discharged from the through holes is changed, so that the retention time of the bubbles in the stock solution can be prolonged.

The utility model relates to a toxic chemical wastewater advanced treatment recycling device in the technical field of chemical wastewater treatment, which comprises a treatment tank, the top end of one side of the treatment tank is communicated with a liquid inlet pipe for introducing wastewater into the treatment tank, and the top of the treatment tank is provided with an oxidant material box for containing an oxidant. According to the utility model, the plurality of filter screens for filtering water are arranged on the outer wall of the vertical pipe, so that oxidation products in wastewater flowing into the vertical pipe can be filtered out through the filter screens, and liquid passes through the filter screens to move to the top of the water baffle and is finally discharged through the liquid discharge pipe; oxidation products filtered by the filter screen can fall into the sludge containing cavity under the action of self gravity to realize solid-liquid separation, and the rotating column can drive the sludge containing cavity to rotate, so that the oxidation products in the sludge containing cavity can be poured into the bottom end of the interior of the treatment tank, and the oxidation products can be taken out on the premise that the machine is not stopped; and the wastewater treatment efficiency of the device is ensured.

The invention provides a high-capacity generator circuit breaker heat dissipation structure based on liquid metal heat dissipation and a working method, and the structure comprises a vacuum arc-extinguishing chamber heat dissipation device, a liquid metal diversion pipeline, and a liquid metal cooling circulation system. The vacuum arc-extinguishing chamber heat dissipation devices are arranged on the two sides of the vacuum arc-extinguishing chamber; the end part of the liquid metal flow guide pipeline is communicated with a liquid metal cooling circulation system; the vacuum arc-extinguishing chamber heat dissipation device is internally provided with heat dissipation fins; and the liquid metal flow guide pipeline is embedded in the radiating fins. The overall heat dissipation capability of the circuit breaker is improved by introducing the liquid metal, the heat dissipation structure of the vacuum arc-extinguishing chamber timely exports heat generated by the vacuum arc-extinguishing chamber, the heat is finally exported to the outside of the circuit breaker through circular flow of the liquid metal, the steady-state temperature rise during operation of the circuit breaker can be effectively reduced, and the service life of the circuit breaker is prolonged. The method is of great significance in improving the capacity of the generator circuit breaker and ensuring safe and reliable operation of the circuit breaker.

The invention discloses a sewage treatment mechanism based on solar energy, and relates to the technical field of sewage treatment.The sewage treatment mechanism comprises a box body, a sewage inlet and a hot air inlet are formed in the box body, a plurality of evaporation plates and baffles are further arranged in the box body, the evaporation plates are arranged from top to bottom, and sediment storage tanks are constructed at the bottoms of the evaporation plates; and the baffle has a first state for blocking the sediment storage tank and disturbing the flow of hot air and a second state for opening the sediment storage tank. According to the sewage treatment mechanism based on solar energy provided by the invention, the sediment storage tank can be blocked through the baffle plate in the first state, and hot air is discharged into the box body through the hot air inlet, so that sewage and the hot air are in countercurrent contact so as to evaporate the sewage; in the process, flowing of the hot air can be disturbed through the baffle in the first state, so that the contact time of the hot air and the sewage is prolonged, and the sewage evaporation efficiency is improved.

The utility model provides a waste lithium battery positive electrode material regeneration device, the regeneration device comprises a salting-out tank, a regeneration tank, a transition pipe, a heating assembly and a spiral stirring assembly, a regeneration chamber is formed in the regeneration tank, and the regeneration chamber is communicated with one end of the transition pipe; the other end of the transition pipe is communicated with the discharge end of the salting-out tank; the spiral stirring assembly comprises a driver, a rotating plate and a plurality of propeller blade groups; the rotating plate is arranged at the bottom of the regeneration chamber; one surface of the rotating plate is connected with the driving end of the driver; the driver drives the rotating plate to rotate; the heating assembly comprises a plurality of heating rods; the heating rods are arranged on the other surface of the rotating plate at intervals; and each propeller blade group is arranged on the peripheral wall of the heating rod in a surrounding manner. According to the device, the heating assembly comprises a plurality of heating rods, and each propeller blade group is arranged on the peripheral wall of the heating rod in a surrounding manner, so that salting-out particles at the bottom of the regeneration chamber are turned and stirred, the contact time of the salting-out particles and the heating rods is prolonged, and the mixing uniformity and the sintering sufficiency of the salting-out particles are ensured.

The utility model discloses a diffusion furnace and a diffusion furnace system, and relates to the technical field of solar cell processing. The diffusion furnace comprises a furnace tube body, a quartz boat and at least one gas inlet pipe group; the quartz boat is arranged in the furnace tube body, and the quartz boat is provided with a placing position extending along a first direction; at least one gas inlet pipe set comprises a gas inlet section located in the furnace tube body, and the gas inlet section is obliquely arranged relative to the first direction. According to the diffusion furnace provided by the invention, the moving path of the process gas can be increased, the contact time of the process gas and the silicon wafer is prolonged, the process gas can fully react with the silicon wafer, and the usage amount of the process gas and the doped medium solution is reduced.

The invention discloses lyocell spinning equipment which comprises a coagulating bath tank used for containing coagulating bath liquid; at least partial section of the wire guide pipe horizontally extends, one end of the wire guide pipe is provided with a liquid inlet communicated with the coagulating bath tank, and the other end of the wire guide pipe is provided with a wire outlet; the spinning nozzle is arranged above the coagulating bath tank, a spinning opening of the spinning nozzle faces a tank opening of the coagulating bath tank, and tows sprayed out of the spinning opening enter the coagulating bath tank to be preliminarily coagulated, then enter the yarn guide pipe to be coagulated and then are pulled out of a yarn outlet of the yarn guide pipe. According to the invention, through the cooperation of the coagulating bath tank, the spinning nozzle and the wire guide pipe, the optimized design of the spinning equipment is realized, the spinning nozzle sprays the fibers into the coagulating bath tank for preliminary solidification, then the tows enter the wire guide pipe, and the horizontal extension section of the wire guide pipe prolongs the retention time of the fibers in coagulating bath liquid, so that the fibers are ensured to be fully solidified; and the mechanical property and the quality consistency are improved.

The invention belongs to the field of asphalt concrete recycling, and particularly relates to an urban construction road asphalt concrete recycling device and an operation method thereof.The urban construction road asphalt concrete recycling device comprises a tank bottom, the top of the tank bottom is provided with a tank top, and the outer wall of the tank bottom is fixedly connected with a first supporting ring; according to the urban construction road asphalt concrete recycling device and the operation method thereof, the first feeding opening is blocked through the arranged flow guide block and the flow guide plate, hot air is prevented from floating upwards too fast to be discharged out of the tank top, and through guiding of the bottom of the flow guide plate, the hot air is accumulated at the included angle between the flow guide plate and the tank top; when a motor is started, a cam is driven to rotate, a second spring is matched, a piston plate moves left and right in a reciprocating mode, hot air at the included angle of a drainage plate and the tank top is extracted and squeezed downwards, and therefore the hot air floating upwards can heat waste asphalt concrete below again, and the hot air floating upwards can be blocked through a side plate; and the contact time of the hot air and the waste asphalt concrete is prolonged.

The invention provides pH detection test paper and a preparation method and application thereof, the pH detection test paper comprises a substrate and a reagent loading layer, and the reagent loading layer is arranged on the substrate; the reagent loading layer contains a pH color developing agent and cationic organic salt. The preparation method of the pH detection test paper comprises the following steps: mixing a substrate and a solution containing a pH color developing agent, and carrying out first drying to obtain a first material; and then mixing the first material and the solution containing the cationic organic salt, and carrying out secondary drying to obtain the pH detection test paper. According to the method, the falling phenomenon of the pH color developing agent during detection can be avoided, color indication is uniform in the detection process, and the detection accuracy is high.

The invention relates to the technical field of tail gas absorption towers, in particular to a tail gas absorption tower which comprises a tail gas absorption tower body, a spraying layer and a liquid storage area are arranged in the tail gas absorption tower body, a plurality of reaction plates are arranged below the spraying layer, a plurality of reaction pieces are arranged on the reaction plates, a plurality of demisting plates are arranged above the spraying layer, and a plurality of demisting pieces are arranged on the demisting plates. Each demisting piece comprises a support, a second avoiding space is formed between each support and the corresponding demisting plate, a demisting cover is arranged at the top of each support, the center of each demisting plate is sunken downwards, a flow guide hole is formed in the center of each demisting plate, a liquid drainage head is connected to the center of the bottom end of the lowermost demisting plate, and the top end of the liquid drainage head is communicated with the flow guide hole of the upper demisting plate. Therefore, the contact time of the purification liquid and the tail gas can be prolonged, the purification effect is improved, liquid drops in the purified gas are effectively removed, and the purification effect is improved.

The utility model relates to the technical field of heat exchange equipment, and discloses an anti-frosting condensation type heat exchanger. The anti-frosting condensation type heat exchanger comprises a base, an air inlet pipe, an air outlet pipe, a protective shell, a water outlet pipe, a water inlet pipe and a partition plate, the protective shell is arranged on the base, the top of the protective shell is connected and communicated with the air inlet pipe, and the bottom of the protective shell is connected and communicated with the air outlet pipe. The top of the protection shell is connected and communicated with a water outlet pipe, the bottom of the protection shell is connected and communicated with a water inlet pipe, a partition plate is fixedly connected to the interior of the protection shell, the first fixing frame is fixedly connected to the base, and the protection shell is arranged on the first fixing frame. By starting the heating module, the heating module generates heat, and the heat is transmitted to the protective shell through the heat conduction pipe, so that the situation that the heat is absorbed by frosting on the surface of the protective shell at low temperature, and the heat exchange efficiency is reduced is avoided.

The utility model discloses a roller washing machine. The roller washing machine comprises a box body; the outer cylinder is arranged in the box body; the inner barrel is rotationally arranged in the outer barrel, a water containing cavity for containing washing water is formed between the outer bottom of the inner barrel and the inner bottom of the outer barrel, and the water containing cavity is communicated with the interior of the inner barrel; the annular shell is arranged in the water containing cavity and fixedly connected with the outer bottom of the inner barrel, the annular shell extends along the edge of the outer bottom of the inner barrel, an annular cavity is formed in the annular shell, a plurality of water leakage holes are formed in the annular shell at intervals in the circumferential direction of the annular shell, and the annular cavity communicates with the water containing cavity through the water leakage holes; and a movable improvement object is accommodated in the annular cavity. The roller washing machine can prolong the contact time of the improved object and the washing water and improve the washing effect.

The invention discloses an adsorption, concentration and oxidation treatment device for waste gas treatment, and belongs to the technical field of waste gas treatment.The adsorption, concentration and oxidation treatment device comprises a support, a control box is installed on the support, the inner side of the support is connected with a threshing and concentration assembly for centrifugally removing granular objects in waste gas, and the waste gas with the granular objects removed rotates and flows upwards; according to the waste gas treatment device, the molar ratio of liquid medicine in the axis of the spraying cover to waste gas at the position is adjusted in a self-adaptive mode, the waste gas treatment efficiency is improved, centrifugal threshing treatment and liquid medicine treatment are combined, and the waste gas treatment effect is effectively improved through organic combination of multiple treatment modes; and sediments generated by mixing the liquid medicine and the waste gas can be thrown to the inner walls of the spraying cover and the particulate matter removal chamber under the action of centrifugal force, and finally fall and flow out along the inner wall of the conical barrel under the action of gravity, so that the generation of scales is reduced, and the whole adsorption concentration oxidation treatment device is prevented from being corroded.

The invention relates to the technical field of zinc oxide preparation, and particularly discloses a waste heat utilization device for preparing zinc oxide by a dry method, the waste heat utilization device comprises a thermal insulation outer cylinder and a settling cylinder, the lower end of the settling cylinder is connected with a V-shaped connecting pipe, and the other end of the connecting pipe is connected with a vertically upward settling pipe; a plurality of fan-shaped columnar heat storage boxes are rotationally arranged on the outer wall of the settling cylinder in the heat preservation outer cylinder, each heat storage box is filled with a phase change heat storage material, and a plurality of heat exchange pipes vertically penetrate through the heat storage boxes; compared with traditional waste heat recovery equipment, the device has the advantages that high-temperature flue gas is recovered on line and can be released and utilized at any time, zinc oxide powder in the high-temperature flue gas can be settled through the two vertical flue gas movement processes of the heat exchange pipe and the settling barrel, and the zinc oxide powder in the high-temperature flue gas can be recycled at any time. The problems of waste heat recovery and powder sedimentation of existing zinc oxide high-temperature flue gas are effectively solved.