30results about How to "Extend regeneration time" patented technology

The invention discloses a biological treatment system of sludge odor and a method for treating the sludge odor by utilizing the same, relating to the field of solid waste treatment. The biological treatment system of the sludge odor comprises an odor collector, an odor fan, an intake pipe, a biological deodorization tower, an outlet pipe, an active carbon adsorption device, a gas monitor and a discharge pipe. The method for treating the sludge odor by utilizing the biological treatment system comprises the following steps of: (1) injecting a bacterial solution enriched with thiobacillus denitrificans and nitrobacteria, acclimatizing for three weeks to finish starting; and (2) charging odor into the biological treatment system for treating through the odor fan. According to the biological treatment system of the sludge odor and the method for treating the sludge odor by utilizing the same, disclosed by the invention, main components of the sludge odor are removed by utilizing thiobacillus denitrificans and nitrobacteria, soft-hard bilayer fillers are adopted and active carbon is adopted for the following adsorption, thus the treatment effect is ensured; in addition, the biological treatment system of the sludge odor and the method for treating the sludge odor by utilizing the same, disclosed by the invention, have the advantages of low energy consumption and operation cost, and high safety and reliability, and is suitable for odor treatment of a large / middle sludge treatment project.

A cryopump includes: a cryopump vessel that defines an inlet; a refrigerator including a first stage and a second stage housed in the cryopump vessel, the second stage being cooled to a lower temperature than that of the first stage; a first cryopanel thermally connected to the first stage and surrounded by the cryopump vessel; and a second cryopanel thermally connected to the second stage and surrounded by the first cryopanel. The first cryopanel includes a plate member having an inlet aperture at the inlet. The inlet aperture is formed in the plate member such that a ratio of a conductance of the plate member with respect to an aperture conductance of the inlet is 6% or less.

The invention discloses a recovery system and a recovery method for an oil gas absorbed and desorbed by asymmetric double pots. The recovery system comprises a first stop valve, a first-level oil gas condenser, a second-level oil gas condenser, a second stop valve, a first-level big activated carbon canister and a third stop valve, wherein an oil gas inlet is connected with one end of the first stop valve; a positive input end of the first-level oil gas condenser is connected with the other end of the first stop valve; a positive output end of the first-level oil gas condenser is connected with an input end of the second-level oil gas condenser; an output end of the second-level oil gas condenser is connected with a negative input end of the first-level oil gas condenser; a negative output end of the first-level oil gas condenser is connected with one end of the second stop valve; the other end of the second stop valve is connected with one end of the first-level big activated carbon canister; one end of the third stop valve is connected with the other end of the first-level big activated carbon canister; the other end of the third stop valve is connected with a first oil gas outlet; the first stop valve, the first-level oil gas condenser, the second-level oil gas condenser, the first-level oil gas condenser, the second stop valve, the first-level big activated carbon canister and the third stop valve are successively connected and form an oil gas recycling subsystem.

Platinum is applied on a carrier such as graphite to form a platinum catalyst. The catalyst becomes poisoned with a metal as a result of use of the catalyst in preparation of hydroxylammonium salts. A method of regenerating the catalyst dissolves the platinum and the metal in an acid. The method also adds ammonium sulfate to the acid to precipitate the platinum. The ammonium sulfate is a by-product of a commercial process to synthesize a caprolactam. Also, the method precipitates the platinum onto the carrier for reuse in the preparation of the hydroxylammonium salts and in preparation of the caprolactam.

Temperature range enabling combustion of high concentration hydrocarbon is enlarged, or high temperature gas is rapidly supplied to a latter part catalyst. Provided is a method for purification of exhaust gas from an internal combustion engine, by using a catalyst for increasing temperature of exhaust gas from an internal combustion engine, wherein hydrocarbon from 1,000 to 40,000 ppm by volume, as converted to methane, to the exhaust gas, is introduced at the upstream side of the catalyst for increasing temperature, along flow of the exhaust gas inside a passage of exhaust gas from the internal combustion engine.

The invention discloses a filtering method, which not only can prevent charged particles from polluting a filter element, but also can increase filtering stability. The method includes that alternating voltage of 10HZ to 50HZ is applied between the filter element and a shell of a filtering device when substances to be filtered realize gas-solid or liquid-solid separation via the filtering device. Under the action of the alternating electric field, the charged particles in the filtering device move repeatedly, as masses of the particles are different and flowing speeds of the particles under the action of the same force are different, the particles with different masses can be separated within a certain space, so that the particles with different masses are successively distributed between the filter element and the shell, and the integral filtering stability is increased. The invention further provides a filtering device comprising a shell and a filter element which are insulated from each other, and the shell and the filter element are respectively connected with two output poles of a power polarity converting circuit with the alternating frequency of 10HZ to 50HZ.

When dividing digital data of variable bit rate into continuous areas of unit periods, it is possible to suppress generation of fragmentation. When the data amount of the buffer memory is equal to or above the unit period, the digital data is read out from the buffer memory by the unit period and the digital data which has been read out is recorded as a continuous area (step 106). When the data amount of the buffer memory is smaller than the unit period, the data amount is predicted from the time corresponding to the digital data amount smaller than the unit period and from the length of the unit period (step 112). The digital data of the unit period is recorded in a recording-enabled area capable of continuously recording the digital data of the predicted data amount (step 106).

The invention relates to a high-tar high-dust high-temperature gas dedusting and decoking device and method thereof, including a filtering device; a shell device for accommodating the filter; a blowback device for cleaning the dust on the filter; wherein , also includes a high-temperature gas circulation device, the high-temperature gas circulation device includes a circulating gas heating device for heating the purified gas coming out of the filter, the inlet port of the circulating gas heating device is connected with the outlet of the filter, and the circulating gas heating device The outlet end of the device communicates with the shell device, and the circulating gas heating device is provided with a gas supply device for supplementing oxygen-containing gas. The device of the present invention can effectively remove the dust and tar pollution on the filter by setting the combination of back blowing and combustion, effectively improve the service life of the filter and the filtering efficiency, and reduce the regeneration time of the filter from 60h To 10h, the service life of the filter has been increased by more than 50%.

A process for extracting hemopoietic stem cells from the placenta of healthy puerperant to create hemopoistic stem cell bank features that the mechanical, enzyme digestive and monoclonal antibody-magnetic bead method is used to extract blood stem cells from placenta, and concentrate and purify them. Its advantages are high activity and high concentration.

The invention discloses a multi-tower pressure swing adsorption grading flushing device and a method. Two concurrent discharge vessels are connected with an adsorption tower; one vessel is a high-pressure concurrent discharge vessel for storing product gas in higher purity and the other vessel is a low-pressure concurrent discharge vessel for storing product gas in lower purity; adjusting valves for adjusting the flushing flux are arranged at an outlet of the high-pressure concurrent discharge vessel and at the outlet of the low-pressure concurrent discharge vessel; the product gas in lower purity in the low-pressure concurrent discharge vessel is firstly used for flushing and then the product gas in higher purity in the high-pressure concurrent discharge vessel is used for later flushing in the flushing process; the flushing time is adjusted according to the pressure of the high-pressure concurrent discharge vessel and the low-pressure concurrent discharge vessel, so that the complete gas exhausting in the flushing process is guaranteed; the practical running regenerating effect is excellent; and the impurity content in the product gas can be effectively controlled.

The invention discloses a device and a method for regeneration of powdered activated carbon. The device comprises a furnace body, wherein a retractable furnace door is arranged on the furnace body; an internal hollow hearth is arranged inside the furnace body; insulating layers are arranged at the four walls and the periphery of the top part of the hearth; heating wires are embedded in the insulating layers. The device is characterized by also comprising an exhaust and tail gas combustion treatment system, an intake valve, a bracket structure, more than one drawer-type box body and a gas outlet valve, wherein the bracket structure is fixedly arranged inside the hearth; the drawer-type box body is detachably arranged on the bracket structure; the exhaust and tail gas combustion treatment system is fixedly arranged at the top part of the furnace body; the intake valve is fixedly arranged at the top of the furnace body; the gas outlet valve is fixedly arranged at the bottom of the furnace body. Compared with the prior art, the regeneration treatment efficiency can be greatly improved, energy consumption and time are saved, and the operation is simple and feasible.

The invention relates to a multifunctional purification apparatus in a condenser of a power plant, which is mounted in the upper part of a water outlet in the condenser. The multifunctional purification apparatus is a hollow cubical purification apparatus assembled by a plurality of purification modules in the condenser. From the outer side to the inner side, the modules are divided into five layers: the first layer is an eddy current resisting apparatus made by stainless steel bars or steel discs; the second layer is a magnetic field screen which is made by permanent magnetic pipes and has the function of deferrization; the third layer is a stainless steel screen having the function of fine filtering; the fourth layer is a stainless steel orifice having the function of coarse filtering; and the fifth layer is an oblate cubical framework-framework orifice made by porous stainless steel plates with intervals in the middle, and the fifth layer has no top surface or front surface but other four surfaces. The five layers form the multifunctional purification modules which are assembled to form a sealed purification apparatus. The invention can accelerate deironing purification of condensed water in starting a steam turbine generator unit, reduce emission, save energy, and prolong the service life of resins.

The embodiment of the invention provides a desulfurization control method and device, a storage medium and electronic equipment. The method comprises the following steps that firstly, the content of sulfide salt in SCR is obtained under all working conditions; whether the content of the sulphide salt is greater than a first preset value or not is judged, if so, a desulfurization action is executed, if not, whether the content of the sulphide salt is greater than a second preset value or not is judged, if so, a regeneration state of DPF is obtained, and if the regeneration state is regeneration, the regeneration time is controlled to be a third preset value, wherein the first preset value is greater than the second preset value, the third preset value is greater than the control duration during the normal regeneration, therefore, according to the scheme, when the content of the sulfide salt is greater than the first preset value, the desulfurization action is executed, and when the content of the sulfide salt is less than the first preset value and greater than the second preset value, the regeneration time is prolonged, so that the accumulated degree of sulfur can be judged in advance, thereby achieving the effect of desulfurization in advance.

The invention discloses a filtering method, which not only can prevent charged particles from polluting a filter element, but also can increase filtering stability. The method includes that alternating voltage of 10Hz to 50Hz is applied between the filter element and a shell of a filtering device when substances to be filtered realize gas-solid or liquid-solid separation via the filtering device. Under the action of the alternating electric field, the charged particles in the filtering device move repeatedly, as masses of the particles are different and flowing speeds of the particles under the action of the same force are different, the particles with different masses can be separated within a certain space, so that the particles with different masses are successively distributed between the filter element and the shell, and the integral filtering stability is increased. The invention further provides a filtering device comprising a shell and a filter element which are insulated from each other, and the shell and the filter element are respectively connected with two output poles of a power polarity converting circuit with the alternating frequency of 10Hz to 50Hz.

The invention discloses a recovery system and a recovery method for an oil gas absorbed and desorbed by asymmetric double pots. The recovery system comprises a first stop valve, a first-level oil gas condenser, a second-level oil gas condenser, a second stop valve, a first-level big activated carbon canister and a third stop valve, wherein an oil gas inlet is connected with one end of the first stop valve; a positive input end of the first-level oil gas condenser is connected with the other end of the first stop valve; a positive output end of the first-level oil gas condenser is connected with an input end of the second-level oil gas condenser; an output end of the second-level oil gas condenser is connected with a negative input end of the first-level oil gas condenser; a negative output end of the first-level oil gas condenser is connected with one end of the second stop valve; the other end of the second stop valve is connected with one end of the first-level big activated carbon canister; one end of the third stop valve is connected with the other end of the first-level big activated carbon canister; the other end of the third stop valve is connected with a first oil gas outlet; the first stop valve, the first-level oil gas condenser, the second-level oil gas condenser, the first-level oil gas condenser, the second stop valve, the first-level big activated carbon canister and the third stop valve are successively connected and form an oil gas recycling subsystem.

The invention relates to the field of the chlorine alkali chemical industry, and in particular relates to a novel refining agent for replacing an existing refining agent in a refining process of primary brine in the chlorine alkali industry. The invention aims to solve the technical problem that in the chlorine alkali chemical industry process at present, the quality of brine entering a resin tower is still not high. The technical scheme for solving the technical problem is to provide the novel refining agent used in the refining process of the brine used in the chlorine alkali industry to replace the originally used 'two-alkali' refining agent. The refining agent takes phosphate as an active ingredient. The novel refining agent is strong in adaptability, and can reduce the total amount of calcium and magnesium in the primary brine by 10 times by replacing the original refining agent, so that the operating load of the resin tower is reduced, the regeneration time of the resin tower is prolonged, then the production cost is reduced, and the refining agent has a very good application prospect.