50results about How to "Achieve dilution" patented technology

The invention provides a large-scale passive nuclear plant reactor core catcher with bottom water injection and external cooling. The catcher comprises a reactor cavity coating the lower middle part of a reactor pressure vessel, and a reactor cavity concrete soleplate is formed at the bottom of the reactor cavity; a refractory layer is formed on the side surface of the reactor cavity and the bottom of the reactor cavity concrete soleplate; a steel cylinder is sleeved outside the refractory layer; an external cooling passage is formed at the bottom of the steel cylinder, and a cooling passage inlet and a cooling passage outlet are respectively formed at the two outward-extending ends of the external cooling passage; and dozens of nozzles are fixed at the bottom of the steel cylinder, and the upper ends of the nozzles extend into the reactor cavity concrete soleplate while the lower ends of the nozzles extend into the external cooling passage. According to the invention, the dilution and the temperature reduction of a melt are implemented through the melting of concrete by adopting the reactor cavity concrete soleplate as a sacrificial material. A reactor core melt is collected in the refractory layer after the reactor cavity concrete soleplate is molten through, so that the security and the reliability of a nuclear plant are further improved.

The invention provides a solid-liquid separation toilet bowl and a solid-liquid separation treatment system comprising the solid-liquid separation toilet bowl. The solid-liquid separation toilet bowl comprises a panel and a toilet bowl body, wherein the middle part of the panel is provided with a seat hole; the toilet bowl body is provided with a urine collection cavity and an excrement collection cavity; and the urine collection cavity and the excrement collection cavity are arranged with one in front of the other in longitudinal direction of the panel, are positioned below the seat hole and are opposite to the seat hole. Through the urine collection cavity and the excrement collection cavity formed in the toilet bowl body and by arranging the urine collection cavity and the excrement collection cavity with one in front of the other in the longitudinal direction of the panel, the urine collection cavity arranged at the front end is used for collecting urine, the excrement collection cavity arranged at the rear end is used for collecting the excrement, so that the urine and the excrement are effectively prevented from being mixed in the toilet bowl body; and thus, separation and recovery of the urine and the excrement are realized, further recycling of the excrement and the urine is realized respectively, and premise is provided for realizing the value of full utilization of the excrement and the urine.

The invention provides a stirring-free method and a stirring-free device for producing sodium nitrate through continuous conversion. The device mainly comprises an ammoxidation-prepared oxynitride system, a soda ash solution preparing system and a sodium nitrite mother solution conversion system, wherein the sodium nitrite mother solution conversion system mainly comprises a converter tower, a pre-converter tower, an absorption tower, a motor solution storage tank and matched pumps and pipelines. Nitric acid and the mother solution undergo conversion reaction in the converter tower; conversion solution reflows and back washes the bottom of the converter tower; gas of the converter tower is separated by a gas-liquid separator and enters the pre-converter tower; and converted gas and oxygen-mixed air are mixed quantitatively and then the mixture enters the absorption tower for absorption to prepare feed solution. The method and the device have the advantages that: the production of the sodium nitrate can be continuously performed; the reflowing and backwashing of the conversion solution replaces air stirring; in the converted gas absorbing process, the converted gas is added with the oxygen-mixed air in a ratio, the process operation is optimized, and loads of the adsorption tower and subsequent processing procedure are lightened; the production capacity is improved; energy consumption is reduced; NOx emission is decreased; and the method and the device are favorable for environmental protection.

The invention discloses a method for independently regulating smoke concentration of a cigarette and the telescopic cigarette. According to the method, the aim of independently regulating the smoke concentration of the cigarette is achieved by initiatively regulating the length of a filter tip by a smoker. Adjustable dilution of the smoke is further achieved by adopting one-way ventilating materials or setting a hole structure on the basis of the adjustable filter tip, based on the same cigarette, dilution of main stream smoke is achieved by initiatively adjusting the length of the filter tip and the number of ventilation holes, and the smokers can adjust the smell of the cigarette according to the favorite smell of the smoke, and select the concentration of the smoke by himself so as to obtain strong sensory stimulation or the light smoke.

The invention discloses a concentration adjustable salt particle aerosol generating system. The concentration adjustable salt particle aerosol generating system comprises an air compressor, a filter, a dryer, an air buffer tank, a first needle valve, a first air flow meter, an air heater, a first Venturi tube, a second needle valve, a second air flow meter, a salt solution storage tank, a metering pump, an aerosol generating chamber, a controller, an online laser particle analyzer, a second Venturi tube and an aerosol buffer tank. The air buffer tank is arranged, and then the dry clean air in the tank is conveyed into the Venturi tube and is mixed with a salt particle aerosol with higher mass concentration, so that the salt particle aerosol is diluted. The mass flow rate of a salt particle is calculated according to the mass concentration and the flow of a saturated salt solution pumped by the metering pump, and the diluting degree of the salt particle aerosol is controlled by adjusting the amount of diluted air, so that the concentration adjustable salt particle aerosol generating system is provided for the related scientific researches. The system has the advantage of convenient and accurate control of the concentration of the salt particle.

The invention provides a reverse osmosis membrane structure, a filter element and a water purifier, wherein the reverse osmosis membrane structure comprises a central tube, the central tube comprisesa concentrated water section and a pure water section which are isolated, the sidewall of the concentrated water section is provided with a concentrated water inlet, a concentrated water outlet is formed at one end of the concentrated water section away from the pure water section, the sidewall of the pure water section is provided with a central tube pure water inlet, and a central tube pure water outlet is formed in one end of the pure water section away from the concentrated water section. A reverse osmosis membrane assembly comprises a reverse osmosis membrane that is wound around the central tube to form a raw water flow channel and a pure water flow channel. One end of the raw water flow channel away from the central tube is provided with a first raw water inlet. A raw water outlet of the raw water flow channel is communicated with the concentrated water inlet. A pure water outlet of the pure water flow channel is communicated to the central tube pure water inlet. The increase ofthe raw water flow channel is achieved, the raw water comes in and goes out straightly, and the cross flow velocity of the reverse osmosis membrane is higher than that of ordinary membrane elements,the concentration polarization of the membrane surface can be effectively reduced, the membrane surface structure is improved, and the service life of the filter element is prolonged.

The invention discloses an organic wastewater catalytic degradation and separation device and method. The device comprises a dilution mechanism, a catalytic degradation and separation mechanism, a first control module and a second control module. The diluting mechanism comprises a diluting box, a stirring mechanism and a stirring driving mechanism. The catalytic degradation separation mechanism comprises a base bracket, a separation chamber, a catalytic mechanism and an aeration mechanism. The separation chamber comprises an upper separation chamber and a middle catalytic degradation chamber and a recovery chamber, wherein a titanium dioxide particle catalyst is arranged in the recovery chamber, and a separation mechanism is arranged in the upper separation chamber. The method comprises the following steps: 1, diluting organic wastewater; 2, conveying the diluted organic wastewater; 3, adding a titanium dioxide particle catalyst; and 4, carrying out catalytic degradation and separationon the diluted organic wastewater. According to the invention, dilution of organic wastewater is realized, catalytic degradation is carried out on the diluted organic wastewater, the catalytic degradation efficiency is improved, and the titanium dioxide particle catalyst can be separated and recovered.

The invention discloses a virus collection tube for a novel coronavirus nucleic acid mixed collection detection technology. The virus collection tube comprises a collection tube body and a tube cap; the tube cap is detachably connected to the collection tube body; the collection tube body is internally provided with an inwardly concave cylinder; An annular space for placing a plurality of pharyngeal swab heads is formed between the concave cylinder and the tube wall of the collecting tube body; an auxiliary pharyngeal swab breaking piece is connected to the inwardly concave cylinder and is formed by connecting a plurality of pharyngeal swab breaking ribs; and virus preserving fluid is arranged in the collection tube body. The annular space formed between the inwardly concave cylinder arranged in the collection tube body and the tube wall of the collection tube body is utilized, and it is guaranteed that enough space is provided for containing 10 pharynx swab heads. The collection tubeis arranged on a high-frequency swirler, so that the ten pharyngeal swab heads vibrate in the collection tube and rotate around the inwardly concave cylinder at the same time, and epithelial cells onthe pharyngeal swab heads can be fully eluted into a collection tube preserving fluid.

The invention provides a multifunctional tobacco leaf fine selection device. The multifunctional tobacco leaf fine selection device is characterized by comprising a tobacco leaf feeding device (1), a sorting box body (3) connected above the tail end of the feeding device (1), a negative-pressure draught fan device (4) mounted at the upper end of the sorting box body (3), a high-speed net belt conveying device (5) covering the inner part of the sorting box body (3) and a high-speed belt conveyor (6) located under the output end of the high-speed net belt conveying device (5). According to the multifunctional tobacco leaf fine selection device, tobacco leaves are thrown out from the outlet of the sorting box body (3) in a mutual clamping manner of the high-speed net belt conveying device (5) and the high-speed belt conveyor (6), so that the flat treatment on the tobacco leaves can be realized; a first air flow injection device (503) is mounted at a discharging end of the high-speed net belt conveying device, so that the tobacco leaves are prevented from being continuously stuck on a high-speed net belt and the tobacco leaves can be smoothly thrown out.

The invention discloses a liquid dispensing device with a cleaning function. The liquid dispensing device comprises a pure water component, a concentrated solution component and a liquid dispensing component, wherein an outlet of the concentrated liquid component and an outlet of the pure water component are both connected to an inlet of a first pump body through a valve body assembly; an outlet of the first pump body is connected with the liquid dispensing component; the liquid dispensing device further comprises a controller; the controller is in signal connection with the first pump body and the valve body assembly; the controller is used for controlling the valve body assembly to be communicated with a channel between the concentrated liquid component and the first pump body, and controlling the valve body assembly to conduct a channel between the pure water component and the liquid dispensing component after controlling the valve body assembly to stop supplying a concentrated solution to the first pump body, so that the pure water component supplies pure water to the channel between the first pump body and the liquid dispensing component. The application achieves the aims of flushing and diluting the first pump body and a subsequent pipeline; and the whole device is lower in cost and smaller in occupied area. The application also discloses a liquid dispensing method with the cleaning function as well as an analyzer system having the liquid dispensing device with the cleaning function.

The invention discloses a multilayer environment-friendly cultivating house which can be used for planting. The multilayer environment-friendly cultivating house comprises two supporting devices, a cross beam is arranged at the upper ends of the two supporting devices, a ceiling is arranged at the upper end of the cross beam, an object storage box, a liquid storage box and a plant cultivating plate are arranged between the two supporting devices from top to bottom in sequence, an object placing tank is arranged inside the object storage box, a first opening is formed in the side wall of the lower end of the object storage box, a liquid storage cavity is arranged inside the liquid storage box, a second opening corresponding to the first opening is formed in the side wall of the upper end ofthe liquid storage cavity, a booster pump is arranged inside the liquid storage cavity, a nozzle is arranged at the lower end of the liquid storage box, the upper end of the nozzle is communicated with the liquid storage cavity, and the nozzle is located over the plant cultivating plate. The multilayer environment-friendly cultivating house which can be used for planting effectively utilizes excrement of poultry, resources are saved, and the surrounding environment is protected.

The invention discloses an electroplated part cleaning and drying integrated device in the technical field of electroplating processing. The electroplated part cleaning and drying integrated device comprises a conveying mechanism, a rotating mechanism and a cleaning tank. The conveying mechanism comprises a driving guide wheel, a driven guide wheel and a ring chain. The ring chain is engaged withthe driving guide wheel and the driven guide wheel. The lower surface of the ring chain is provided with suspension rods. The bottom end of each suspension rod is connected with an electromagnet. Thesidewall of each electromagnet is annularly provided with a first rack. The rotating mechanism comprises a second rack and fixed wheels. The fixed wheels are located under the driving guide wheel andthe driven guide wheel correspondingly. A connecting rod is connected between the driving guide wheel and the fixed wheel located under the driving guide wheel. The second rack is connected between the two fixed wheels. The cleaning tank is located below the second rack. The sidewall of the cleaning tank is provided with a first channel. Hollow vertical walls are arranged at an outlet of the firstchannel. A draught fan is arranged in the vertical walls. The sidewalls, facing an air outlet of the draught fan, of the vertical walls are hollowed-out plates. Heating elements are arranged on the hollowed-out plates. Through the electroplated part cleaning and drying integrated device, integration of cleaning and drying of electroplated parts is achieved.

The invention discloses a supercritical CO2 boiler capable of realizing uniform combustion, corrosion resistance and coking resistance and a boiler system. The supercritical CO2 boiler comprises a main combustion chamber, an upper hearth, a furnace arch and a flue; the cross section of the main combustion chamber is round, oval or N-sided, N is larger than 4, and at least four combustor groups arearranged on the main combustion chamber; each group of combustor nozzles corresponding to each combustor group include a recirculating air nozzle, a primary air nozzle and a secondary air nozzle, andside recirculating air nozzles which are symmetrically distributed are arranged on the two sides of the primary air nozzle; the recirculating air nozzles and the side recirculating air nozzles are used for feeding recirculating flue gas or mixed gas of the recirculating flue gas and secondary air into the main combustion chamber; the primary air nozzles are used for feeding primary air or mixed gas of the primary air and the recirculating flue gas into the main combustion chamber; and the secondary air nozzles are used for feeding secondary air or mixed gas of the secondary air and the recirculating flue gas into the main combustion chamber; the load of the supercritical CO2 boiler and the load of the boiler system are uniform, and high-temperature corrosion, coking and slagging on the wall surface of the boiler are avoided.

The invention discloses an environment-friendly and safe soil remediation device capable of enhancing the soil remediation effect, relates to the technical field of soil remediation, and solves the problem that an existing device cannot prevent secondary pollution of soil caused by an extracting agent used in the leaching process through a combined remediation technology. The environment-friendly and safe soil remediation device capable of enhancing a soil remediation effect comprises a front frame; the rear end of a rear bracket is fixedly connected with a rear frame; side tracks are arranged at the bottom of the rear frame; a fixing bin is arranged behind the inner side of the rear frame; and a heat treatment structure is arranged in the fixing bin. Through synchronous transmission of two bevel gear sets, a movable screen hopper can be shaken, blocky soil can be rapidly shaken into scattered particles, and the soil can be conveniently and evenly heated; and a heat treatment technology is matched with a soil washing technology, an eluting agent containing volatile pollutants in the soil can be rapidly evaporated through heating, and secondary pollution to the soil caused by an extracting agent used in the eluting process can be prevented.

The invention relates to a molasses heating diluting apparatus for heating and diluting molasses and solving the problems of a molasses diluting box such as slow diluting and heating speed and caramel. The molasses heating diluting apparatus comprises a mixing tower, a mixing trough, a multilayer latticed plate, a feeding pipe, a water inlet pipe and a molasses reflux pipe, wherein the mixing trough is disposed below orifices of the feeding pipe, the water inlet pipe and the molasses reflux pipe, the multilayer latticed plate is disposed below the mixing trough, a steam inlet pipe for introducing heated steam is arranged below the latticed plate at the lowermost layer, the top of the mixing tower is provided with a steam scattering pipe, and the bottom of the mixing tower is provided with a discharging main pipe. Materials in the molasses heating diluting apparatus are sufficiently mixed by virtue of the mixing trough and the latticed plate from top to bottom, so that the added molasses can be sufficiently dissolved and mixed; moreover, the molasses can be sufficiently heated by the rising steam in the rising process; and meanwhile, a stirring effect can be realized, and a purpose of rapid dilution and heating can be realized; and the openness of each electrically operated valve can be automatically controlled by the controller by detecting the temperature and the brix degree so as to automatically heat and dilute the molasses.

The present invention provides a treatment method and a treatment apparatus for organic wastewater. The treatment apparatus comprises a wastewater preheater, an evaporator, an ejector, a fouling device, a steam compressor and a condensation water collection separator. The present invention further provides a method for treating organic wastewater by using the treatment apparatus. According to the present invention, the treatment method and the treatment apparatus have advantages of safety, reliability, simple equipment, low operation cost, energy saving, significant effect, and the like.

The invention discloses retractable type water, fertilizer and pesticide integrated spraying irrigation equipment. The equipment comprises a casing pipe, a first-stage retractable pipe, a second-stageretractable pipe and a nozzle which sequentially sleeve one another from outside to inside, wherein the nozzle is disposed on the top of the second-stage retractable pipe; the bottom of the casing pipe is communicated with a water pump through a base and a connecting pipe which are in screwed connection; feeding through holes are formed in the portions, symmetric about the central axes of pipe bodies, of the interiors of the pipe bodies of the casing pipe, first-stage retractable pipe and second-stage retractable pipe respectively; the portions, located at end openings of the feeding throughholes, of the casing pipe and an inner cavity of the top of the first-stage retractable pipe are fixedly connected with hemispherical connectors, and every two adjacent feeding through holes are communicated with each other through the corresponding hemispherical connector. A controller is adopted for controlling the water pump and a pesticide pump to work, liquid which is pumped out is mixed by apesticide mixing device and then sprayed out through the nozzle, and integrated spraying of water, fertilizer and pesticide can be realized.

The invention discloses a pipetting device. The pipetting device comprises a liquid container. The liquid container is a sealed container. The sealed container comprises a liquid inlet, a liquid outlet, an implant pipe and at least one conduit. The pipetting device also comprises a pump for providing air power for the sealed container. The liquid inlet is communicated with a liquid inlet pipe and the liquid outlet is communicated with a liquid outlet pipe. The implant pipe is arranged in the sealed container, one end of the implant pipe is connected to the liquid outlet and the other end of the implant pipe enters into the sealed container and stretches to the bottom of the sealed container. One end of the at least one conduit is communicated with the top of the sealed container and the other end of the at least one conduit is connected to the pump so that the pump can suck air in the sealed container or feed air into the sealed container. The pipetting device is an integrated pipettor and can realize combination of input, output, mixing and cleaning. The pipetting device has a constant-current pipetting function.

A high-efficiency actinomycete separation culture device comprises a support, a plurality of vertical rails on the right side of the support, sliders on the vertical rails, a circular ring at the upper end of the sliders, a dilution tube on the inner ring of the circular ring, a dropper at the bottom of the dilution tube, a first one-way pressure valve in the dropper, a first piston on the dropper, a second through hole on the first piston, and a first electromagnetic valve connected with the second through hole. The first electromagnetic valve is connected with a sterile water supply pipe, the slider is connected with a driving device, and an electric push rod is arranged at the upper end of the support. A controller is also included. In use, the invention is controlled by the controller, sterile water in all the dilution pipes can be automatically supplemented, the dilution ratio of actinomycetes in all the dilution pipes can be ensured to be constant, and the problem of overlarge error caused by single dilution is avoided through a sequential dilution method, so that the device is applicable to supply of a plurality of culture medium plates; especially, the assembly line of a production workshop is adapted, and supplement of solutions of the dilution tubes on different layers and liquid outlet of the dropper on the lowermost side do not conflict with each other.

The invention discloses a thermal exploitation device of an offshore heavy oil field. The thermal exploitation device comprises a working platform and a heating bucket; a gas injecting pipe and an oilpumping pipe are mounted in the middles of the two sides of the lower end of the working platform in a communicating mode correspondingly; fixing columns are mounted at the four corners of the upperend face of the working platform correspondingly; fans are fixed to the upper ends of the fixing columns correspondingly; solar panels are mounted on the two sides of the upper end face of the workingplatform correspondingly; an air blower is mounted on the position, located at the gas injecting pipe, of the upper end face of the working platform; a storage battery is mounted on the position, located on one side of the air blower, of the upper end face of the working platform; the heating bucket is located at the end, close to the air blower, of the upper end of the working platform; a waterinlet pipe is mounted at the upper end of the heating bucket in a communicating mode; the upper end of one side of the heating bucket is connected with the gas injecting pipe through a steam pipe; a heating block is mounted at the bottom end inside the heating bucket; and an oil storage bucket is fixed to the upper end face of the working platform. The exploitation efficiency of the offshore heavyoil field is advantageously improved by autonomous generation.

The invention discloses a dynamic gas-distributing gas-supplying device. A carrier gas forms a continuous standard gas under the action of the dynamic gas-distributing gas-supplying device, the interior of the dynamic gas-distributing gas-supplying device forms an alternately-switching gas distribution channel, and the gas distribution channel comprises a flow control module, a first channel control module, a permeation module and a second channel control module; and after the carrier gas flows through the flow control module, the carrier gas enters permeation cavities of the permeation modulein parallel under deployment of the first channel control module, and the obtained gas is collected and / or communicates with an air end to be discharged under the regulation and control of the secondchannel control module. According to the device provided by the invention, the permeation cavities are arranged independently to each other without mutual interference, and temperature of a pluralityof permeation cavities can be independently controlled, so that accurate control of permeability of single permeation cavity is realized, error caused by difference between actual temperature and control temperature is compensated, and the permeability is compensated and corrected according to the actual temperature to improve accuracy of gas distribution.

The present invention relates to a robot and in particular to an agricultural automatic pesticide spray robot. A technical problem to be solved is to provide an agricultural automatic pesticide sprayrobot capable of automatically shaking a pesticide box, automatically spraying a pesticide and avoiding pesticide residues on a human body. According to a technical solution of the present invention,the agricultural automatic pesticide spray robot includes a frame and a protective cover; the frame is provided with a walking mechanism, and the left and right sides of the frame are provided with hydraulic spray mechanisms connected with the walking mechanism; and the protective cover is disposed at the top of the frame. The walking mechanism drives the agricultural automatic pesticide spray robot to move rightwards, the agricultural automatic pesticide spray robot does not need to be moved manually, in this way, a pesticide may be sprayed on different places; due to the adoption of the hydraulic spray mechanisms, the pesticide is automatically sprayed, repeated manual pressing is not needed, and thus, manual operation is reduced; and the left-right reciprocating motion of a pesticide barrel is realized by a push rod and a first elastic element, and thus, the pesticide may be sufficiently mixed with water so as to be diluted.

The invention relates to a supercritical selective dehydration extraction-variable pressure focusing supercritical fluid chromatography online analysis system comprising a carbon dioxide pump, a firstchromatographic pump, a second chromatographic pump, a first six-way switching valve switching flow paths, a second six-way switching valve for switching flow paths, a mixer, a supercritical fluid extraction device adopting a selective adsorbent, a chromatographic column, an ultraviolet detector, a mass spectrum detector, a three-way connector A, a three-way connector B, a three-way connector C,a first back pressure regulator, a second back pressure regulator and a connecting pipe for connecting all parts. The invention also relates to an analysis method of the system. According to the invention, the problem of impurity interference in a sample matrix is solved, and the problem of chromatographic peak broadening caused by non-focusing of a large amount of extraction liquid at the columnhead of the chromatographic column when the existing supercritical fluid extraction-supercritical fluid chromatography combined system is used is also solved.

The invention relates to the technical field of medical treatment, in particular to a pretreatment tube and a pretreatment method for a liquid-based cell sample.The pretreatment pipe comprises a pipe body; a pair of slots which are formed in the inner wall of the pipe body; an inserting plate, the width of the inserting plate is matched with the spacing distance of the pair of inserting grooves, and the inserting plate is used for being embedded into the pair of inserting grooves so as to divide the pipe body into a first cavity and a second cavity which are closed with each other; a filter membrane is arranged on the insertion plate and is provided with a plurality of filter holes, and the size of the filter holes is smaller than that of the cells to be treated. According to the technical scheme, the pretreatment tube has the beneficial effects that the insertion plate is arranged in the tube body of the pretreatment tube to divide the tube body into the first cavity and the second cavity, and the insertion plate is provided with the filter membrane with the filter holes, so that the tube body is not only used for storing cell samples, but also can realize other reaction functions such as dilution, enrichment and dyeing in the tube body.

The invention discloses a wafer fixing device and a wafer drying device.The wafer fixing device comprises a bottom supporting piece, a plurality of clamping jaws are arranged on the peripheral side of the bottom supporting piece at intervals, and clamping parts used for abutting against the edge of a wafer are formed on the clamping jaws; the clamping jaw is provided with a dredging hole, and the dredging hole is formed in a penetrating mode from the clamping portion of the clamping jaw to the outer side. The dredging holes can guide fluid to be discharged so as to restrain the fluid from staying at the wafer or the clamping jaw.

The invention discloses a concentrated acid mist purifying device which is characterized in that eleven serially connected containers are arranged in a cabinet body; high-speed airflow is generated through an air pump to dissolve concentrated acid mist in clear water or alkaline liquid in the eleven containers in sequence. According to the concentrated acid mist purifying device, firstly, the treatment time is prolonged in the clear water, and the clear water can be used for all-directionally cleaning the concentrated acid mist and effectively removing particles, impurities and water-soluble organic matters in the concentrated acid mist, so that the primary purification process is finished; secondly, concentrated acid mist gas passes through the alkaline liquid in a full-bath manner, so that the gas-liquid contact area is greatly enlarged; the full contact reaction is produced, so that the absorption efficiency of the alkaline liquid is improved and the purposes of diluting and neutralizing acidic gas and reducing the acidic gas concentration are achieved; thirdly, the acid mist gas enters the clear water containers to be cleaned, so that the acid mist gas is further purified; finally, the residual trace acidic gas is absorbed and deodorized by a molecular sieve and an active carbon layer in the eleventh container, so that the concentrated acid mist is completely purified and the purified acidic gas meets the national emission standards.

The invention discloses an oxygen bomb replacement protection device, which comprises an oxygen bomb assembly, an oxygen bomb, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are connected with the oxygen bomb; the air exchange assembly is connected with the oxygen bomb assembly and comprises an air inlet box connected with the air inlet pipe and a liquid medium box connected with the air inlet pipe; the protection assembly is connected with the air outlet pipe and comprises a water storage area, a pressure relief area connected with the water storage area, a valve element arranged in the pressure relief area and a push rod connected with the valve element; according to the oxygen bomb replacement protection device, harmful gas in the oxygen bomb can be diluted, meanwhile, the harmful gas is absorbed through a liquid medium, pressure relief is conducted on the oxygen bomb through the protection device in the operation process, seamless connection can prevent the harmful gas from overflowing, meanwhile, the harmful gas can be discharged through the liquid medium, the human body is protected, and safety is improved.

The invention discloses a pesticide dilution device for agricultural production, which comprises a base, a collection box and a dilution box. A rotating rod is arranged on a rotating frame on the top plate of the dilution box, and a driven bevel gear is fixedly installed on the outer circumference of the upper part of the rotating rod. The top plate of the right part of the dilution tank slides left and right to be provided with a support fixed plate, and a drive motor is fixedly arranged on the support fixed plate, the output shaft of the drive motor is driven and connected with one end of the rotating shaft, and the other end of the rotating shaft is fixedly provided with a driving bevel gear. The internal thread through hole provided on the fixed plate is connected with a screw rod, and the other end of the screw rod is rotationally connected with the right side of the support fixed plate, and the top of the turning rod is connected with a transmission handle through a clutch. The present invention can selectively use manual or electric drive to stir the mixed solution in the dilution tank to realize the dilution of pesticides, and the second stirring part is arranged obliquely, which further improves the dilution effect of pesticides and has high working efficiency.