31results about How to "Reduce the burden of purification" patented technology

The present invention provides a process for producing 5-iodo-2-methylbenzoic acid by iodizing 2-methylbenzoic acid, which comprises, as essential steps, a reaction step in which 2-methylbenzoic acid is iodized in the presence of a microporous compound, iodine, an oxidizing agent, and acetic anhydride and a purification step in which sublimation, distillation, crystallization, or a combination of two or more of these is conducted. By the process, 5-iodo-2-methylbenzoic acid, which is useful in functional chemicals such as medicines, can be easily obtained as a high-purity compound in a high yield. The production steps comprising reaction and separation/purification are simple from the standpoint of process operation and the purification load is small. Furthermore, the microporous compound, e.g., a zeolite catalyst, separated and recovered from the liquid resulting from the reaction can be repeatedly used after a simple treatment. Consequently, the catalyst has a long life and the target compound can be produced by the efficient process.

The invention belongs to the field of air purification and discloses a purification device for removing air-carried life particles. The purification device comprises a guiding jet device, a particle collector, at least one filter, an axial flow fan and a casing. By utilizing air jet flow impact, the life particles in the air are separated and inactivated, and thus sterilization efficiency is improved; air flow flows through a filtering device, so that the remaining air-carried particles are removed, and finally an effect of purifying indoor air is achieved. According to the device, a microwave heating method is further adopted, so that the whole device, and particularly the filter, maintain a dry state, and reproduction of microorganisms in the purification device and on the wall of the purification device is avoided. The device can be placed in an indoor air purifier or an air conditioning system pipeline, and is of great significance for reducing the content of disease source particles in the air and improving workers' health level and safety guarantee capacity of a building.

The invention discloses an experimental biological safe purifying platform. The experimental biological safe purifying platform comprises an operating platform frame; a working box is arranged at thecenter of the front side of the operating platform frame; a workbench is arranged at the bottom of the working box; semi-circulating air purifying mechanisms are arranged at the top and the bottom ofthe operating platform frame; glass walls are arranged on the side surfaces of the working box; a square hole is formed in the center of the front side surface of the working box; the top end of the square hole is movably connected with an operating window door; an anti-interference air purifying mechanism is arranged at the connection position of the operating window door and the square hole; theanti-interference air purifying mechanism is connected with the semi-circulating air purifying mechanisms; and a non-light experiment mechanism is arranged on the back side surface of the working box. According to the device, the working box still can maintain the clean environment when the operating window door is opened to perform experiment; meanwhile, the device can adapt to various experimental environments, so that the use range of the device is wider; in addition, part of air passing through the working platform can be completely utilized, waste is avoided and the burden of the air purifying device can be reduced.

The invention relates to a high-concentration dust pregrading device and method. The high-concentration dust pregrading device is arranged between a gas-collecting hood suctioning pipeline and purifying equipment, and comprises a pipeline, baffling plates, blocking plates and a dust collector, wherein the baffling plate is arranged in the pipeline, a plurality of relatively-independent flow channels are formed in the pipeline, and dust settling grooves are formed in the side surfaces of the baffling plates; the dust collector is arranged under the flow channels, and the plurality of blocking plates are arranged along a flowing direction of airflow and towards the direction of the bottom end of the dust collector from the baffling plates, and are arranged at the bending positions of the baffling plates, so that a plurality of spaced and communicated spaces are formed in the dust collector. The high-concentration dust pregrading device and method have the advantages that large-granular dust impacts the baffling plates under the action of self inertiam and falls into the dust collecting chamber along the wall surfaces of the dust settling grooves; in order to prevent a large amount ofairflow from rushing into the dust collecting chamber and prevent the large-granular dust from being rolled up by the airflow, the blocking plates are arranged at the lower ends of baffling points ofthe flow channels; after the baffling plates are impacted for multiple times, the large-granular dust is settled gradually, so that the purpose of pre-separating the large-granular dust at the frontend of a dust remover is achieved and the purifying burden of a back-stage dust remover is reduced.

The invention relates to the technical field of petrochemical waste gas treatment and in particular relates to a high-efficiency petrochemical waste gas treatment device. The high-efficiency petrochemical waste gas treatment device comprises a waste gas pretreatment unit, a waste gas purification unit and a water circulation unit; the waste gas pretreatment unit is composed of a waste gas separation unit and a waste gas prewashing unit; the waste gas purification unit comprises a purification pool; a biodegradation unit, a plant purification unit and a photo-catalytic oxidation unit are sequentially arranged in the purification pool from bottom to top; the biodegradation unit comprises a placement channel; the placement channel transversely penetrates through the purification pool; a replaceable biodegradation mechanism is inserted into the placement channel. According to the high-efficiency petrochemical waste gas treatment device disclosed by the invention, the waste gas treatment difficulty can be reduced, the waste gas purification ability and efficiency are improved, so that a recyclable biology-environment balance system is established by the whole device, and the purification degree of the waste gas can be effectively improved.

The invention discloses a spiral air inlet mechanism for an air purifier. The spiral air inlet mechanism for the air purifier comprises a housing, an outer pipe and an air inlet pipe; the outer pipe is arranged on one side of the top end of the housing and communicates with the housing; an air inlet is formed in the end of the outer pipe; the air inlet pipe is arranged on one side of the bottom ofthe housing; one end of the air inlet pipe is arranged in a bending manner and communicates with the housing; an air outlet is formed in the other end of the air inlet pipe; a spiral pretreatment belt is arranged in the air inlet pipe and is arranged on the inner wall of the air inlet pipe in a rotating and disc-attached manner; an activated carbon particle belt is arranged on the inner side surface of the spiral pretreatment belt; and the housing internally comprises a transmission motor and a blowing fan. The spiral air inlet mechanism for the air purifier has the advantages that the efficiency is high, the energy consumption is low, and particles and bacteria can be pretreated, so that the service life of a filtering element is prolonged; and the spiral air inlet mechanism for the airpurifier has broad market prospects and application prospects.

The invention relates to the technical field of domestic sewage purification treatment, in particular to domestic sewage purification treatment equipment with a liquid suction function and a use method. A liquid suction assembly based on a piston is adopted so that the device can realize automatic liquid suction; a filter screen is used for filtering larger impurities in the sewage, the subsequentpurification burden is reduced, and the larger impurities are blocked on the left side of the filter screen and lifted into a slag receiving cavity so that the larger impurities are convenient to collect and are subsequently discharged from a slag discharge pipe; a conversion assembly is adopted so that a driving assembly enables a fourth rotating shaft to rotate forwards and backwards through the conversion assembly; in this way, a stirring assembly arranged at the bottom end of the fourth rotating shaft rotates along with the fourth rotating shaft, sewage and chemicals flowing into a preparation box are stirred and mixed through transverse stirring rods and vertical stirring rods, and purification treatment is conducted; the stirring rod periodically rotates forwards and backwards so that the turbulence intensity is effectively improved, and the medicament treatment effect is improved.

The invention relates to a wastewater recycling system which comprises a first water pump, a settling pond, a cooling tower, a filtering pond, a second water pump and an exhaust fan. The water inlet of the first water pump is communicated with the water outlet of a PVC production device through a first water pipe, the water outlet of the first water pump is communicated with one end of the settling pond through a second water pipe, the other end of the settling pond is communicated with the water inlet of the cooling tower through a third water pipe, the water outlet of the cooling tower is communicated with one end of the filtering pond through a fourth water pipe, the other end of the filtering pond is communicated with the water inlet of the second water pump through a fifth water pipe, and the water outlet of the second water pump is communicated with the water inlet of the PVC production device through a sixth water pipe. The first water pipe is circuitous and is wrapped by a box body, the air inlet of the exhaust fan is communicated with the box body, and the air outlet of the exhaust fan faces one side of the PVC production device. Compared with the prior art, the wastewater recycling system can cool, filter and recycle hot wastewater, use dissipated heat for heating at the same time and improve resource utilization rate.

The invention discloses a filter type anti-vacuum oil mist absorbing cover. The technical scheme mainly includes that a reasonable annular cavity is formed between a lower packing seal cover and an upper packing seal cover, and a segmented filter is mounted in the reasonable annular cavity via a plurality of L-shaped support frames, an upper-layer segmented compression ring, a lower-layer segmented compression ring, fixing bolts and support frame bolts; a U-shaped oil return pipe is mounted in two symmetrical oil return screw holes on the inner side of the segmented filter, and oil mist absorbing pipes are arranged on oil mist absorbing holes on two sides of the lower packing seal cover; and a segmented flow guide cover is fixed onto the upper packing seal cover, a segmented flexible sealing body is arranged at the upper end of the segmented flow guide cover, a plurality of layers of segmented retaining collars are mounted on the inner side of the segmented flow guide cover, and the segmented flow guide cover is concentric with a spindle. According to the technical scheme, the filter type anti-vacuum oil mist absorbing cover can be widely applied to the field of hydroelectric power generation.

The invention discloses energy-saving and environment-friendly waste incineration flue gas treatment equipment, which comprises a settling tower and a filtering tower, wherein the settling tower comprises a first shell and a spraying mechanism, a first air inlet and a first air outlet are formed in the first shell, the spraying mechanism is installed in the settling tower, the spraying mechanism comprises a spraying pipe and a flow guide disc, the water outlet of the spraying pipe is arranged opposite to the flow guide disc, the edge of the flow guide disc abuts against the inner wall face ofthe first shell, the filtering tower comprises a second shell and a filter cartridge mounted in the second shell, a second air inlet and a second air outlet are formed in the second shell, and the first air outlet is communicated with the second air inlet. According to the invention, waste incineration flue gas is firstly subjected to sedimentation purification treatment through a settling tower and then subjected to secondary purification through a filter cartridge, so that the waste incineration flue gas is fully purified, the purification effect of the waste incineration flue gas treatmentequipment is improved, the purification burden of the filter cartridge is reduced, the filtration cost is reduced, the purification efficiency is improved, and the purposes of energy conservation andenvironmental protection are achieved.

The invention relates to the technical field of ecological peanut fertilizers, and provides a nitrogen-reducing and yield-increasing molasses ecological peanut fertilizer. The fertilizer contains the following components: 25-45 parts of urea, 10-30 parts of ammonium sulfate, 15-40 parts of monoammonium phosphate, 20-40 parts of potassium chloride, 0.1-0.6 part of zinc sulfate monohydrate, 0.5-1.2 parts of borax and 150-250 parts of cane molasses alcohol waste liquid. The fertilizer overcomes the defects in the prior art, is reasonable in design and compact in structure, and solves the problems that an existing peanut fertilizer is single in effect and cannot provide enough nutrients for peanut growth. According to the invention, cane molasses alcohol waste liquid is taken as a carrier, large and medium trace elements with proper proportion are added according to nutritional characteristics of peanuts in southern China and soil conditions, and the formula is long-acting; the cane molasses alcohol waste liquid is rich in various amino acids, proteins and polyglutamic acid, and the fertilizer can play a role in preserving moisture and fertility when being applied to soil. The great improvement and promotion effect and the ecological effect are achieved on southern peanut planting.

The invention discloses an ecological cycle high-efficiency tail water treatment method. The method comprises the following steps: step 1, pre-treatment; step 2, airing the pond and feeding water; step 3, treating pond management; step 4, adding algae seedlings; 5, adjusting water quality; step 6, supplementing algae species; 7, circulating water supply; according to the method, the growth of moss is effectively inhibited by adding quick lime and bleaching powder, so that the purification burden of tail water treatment is reduced, and the improvement of the organic environment in the tail water treatment pond and the promotion of the growth of algae and herbaceous plants are facilitated by adding and supplementing rotted leaves to the bottom of the tail water treatment pond, so that the biological purification effect of the biological wetland is guaranteed; by regularly adding a compound additive composed of various fungi into the tail water treatment pond, decomposition of organic matters in a water body in a culture land is facilitated, the balance of bacteria and algae in the water body is guaranteed, and generation of harmful disease sources in the water body is inhibited, so that the water quality in the culture land is improved, and the quality of aquaculture is guaranteed.

The invention relates to the technical field of ecological corn fertilizers, and provides a water and fertilizer retention molasses ecological corn fertilizer, which comprises the following components of 25-45 parts of urea, 10-30 parts of ammonium sulfate, 15-40 parts of monoammonium phosphate, 20-40 parts of potassium chloride, 0.1-0.6 part of zinc sulfate monohydrate, 0.5-1.2 parts of borax, and 150-250 parts of cane molasses alcohol waste liquid. The corn fertilizer overcomes the defects in the prior art, is reasonable in design and compact in structure, solves the problems that an existing corn fertilizer is single in fertilizer benefit and not diversified, takes the cane molasses alcohol waste liquid as a carrier, is added with large, medium and trace elements in a proper proportion according to the nutritional characteristics of corn in southwest China and soil conditions, has a long-acting formula; according to thelong-acting professional corn fertilizer made by spraying and granulating, the cane molasses alcohol waste liquid is rich in various amino acids, proteins and polyglutamic acid, bacillus natto is added into the cane molasses alcohol waste liquid for fermentation to generate a proper amount of polyglutamic acid, and the fertilizer can play a role in water and fertilizer retention when applied to soil; and the great improvement and promotion effect and the ecological effect are achieved on drought planting of the corn in the south.