31results about How to "Avoid secondary flying" patented technology

The invention relates to a double-cartridge filter. The double-cartridge filter comprises a top cover, a purification chamber, a dust removal chamber and an ash hopper, wherein an air inlet pipe is mounted on the side wall of the dust removal chamber, and an air outlet pipe is mounted on the side wall of the purification chamber; the purification chamber and the dust removal chamber are isolated by a porous plate; cartridges are mounted at pores of the porous plate, upper ends of the cartridges are sealed and fixed with the pores of the porous plate, and the lower ends are fixed on a support reticular plate; the support reticular plate is fixed between the dust removal chamber and the ash hopper; an electrostatic generator is further mounted outside the dust removal chamber and comprises a reversing switch; electrostatic tubes are coaxially arranged in the cartridges, and lower ends of the electrostatic tubes are mounted on the support reticular plate; the electrostatic tubes are electrically connected with the electrostatic generator. The double-cartridge filter can promote dust to be attached to the cartridges rapidly, realizes efficient dust removal and can clean ash simply and rapidly.

The invention relates to a split-type pulse dust collector for drying and burning sludge, which comprises an upper box body, a lower box body and a control system, wherein the upper box body comprises at least one filtering unit; the filtering unit comprises a purified gas chamber arranged in the upper layer, a filtering chamber arranged in the lower layer and a porous plate spacer arranged at the middle; a bypass channel is arranged inside the upper box body; the bypass channel extends out of the upper box body and is communicated with the external air through a by-pass valve; the by-pass valve plays the role of protecting against high temperature; the lower box body comprises an ash bu0063ket and a material bin; a vibrating and beating device is arranged inside the ash bucket; and the control system comprises a power control box and a power supply inlet. With the structure, the invention has the characteristics that: the split-type pulse dust collector for drying and burning sludge is convenient for installation, removes the ash completely, improves the seal performance, reduces the oxygen content, prolongs the service life of the filter bags, achieves the reasonable distribution of the filter bags, avoids the problem of bridging deposition of ashes inside the ash bucket during the use, and allows the by-pass valve and the lifting valve to be closed tightly. Besides, the split-type pulse dust collector for drying and burning sludge has the high temperature protection function.

The invention discloses an ultra-low emission absorption tower, which comprises an absorption tower body, a mist eliminator, a spray layer and a slurry pool, the slurry pool is arranged at the bottom of the absorption tower body, and the mist eliminator is arranged at the upper part of the absorption tower body , the spray layer is set under the demister, the bottom of the lowest spray layer is provided with a slurry distribution plate; the bottom of each spray layer is equipped with a slurry guide ring; the demister is composed of three sets of roof-type defogging It consists of a demister and a set of tube type demisters. The tube type demisters are located below the ridge type demisters on the lowest level, and there is a condensation and system. The invention can remove fine dust with small particle size in the flue gas of the power plant, effectively increase the spray coverage, and increase the SO in the flue gas. 2 It can effectively prevent the wear of the inner wall of the absorption tower body, and at the same time guide the flue gas to make the flue gas flow to the spray intensive area and reduce the pressure loss at the side wall.

The invention discloses an electrical precipitator, comprising a dedusting main body with an electric field polar plate arranged inside the dedusting main body, and an inlet loudspeaker and an outlet loudspeaker which are arranged on two ends of the dedusting main body, wherein the dedusting main body comprises a plurality of dedusting sections in which cross sectional area nearby the outlet loudspeaker end is larger than that nearby the inlet loudspeaker. After smoke enters the electrical precipitator through the inlet speaklouder, large dust particle with strong charge is collected by the front dedusting sections with small cross sectional area under actions of natural sedimentation and electric field force; the residual fine dust is collected by the back dedusting sections with large cross sectional area. As the back dedusting sections have large cross sectional area, the flow velocity of the dusty gas declines so as to increase residence time, charged time and time of motion under the electric field force of the fine dust in the dedusting sections, so that the dust is easy to charge or deposit on the polar plate; therefore, the dedusting efficiency is improved, the dust emission is reduced and the excessive emission is avoided.

The invention relates to a method for utilizing bauxite dust produced during the aluminum oxide producing process by an ore dressing Bayer method, comprising the following steps of mixing the bauxite dust with the overflow water of a concentrate thickener to obtain the slurry with a certain concentration; after the slurry is mixed with the overflow of a second-grade grader in grinding process according to a certain rate, adding regulator, dispersant and collecting agent to the obtained slurry according to the requirements; and then obtaining the concentrate and tailings after the operations of coarsely scavenging for one time, finely scavenging for two times and scavenging (coarsely scavenging and finely scavenging). The method of the invention prevents the raw ore dust from secondarily flying, overcomes the argillization phenomenon of dramatically grinding the raw ore dust, optimizes the flotation work environment of the bauxite, and improves the selection index.

Provided is an environment-friendly mobile collecting box for decoration cutting dust. The mobile collecting box comprises a box body, wherein a water tank is fixedly mounted on one side of the bottomsurface of the inner wall of the box body, the bottom surface and the outer side of the water tank are fixedly connected to the inner wall of the box body separately, the inner side of the water tankis fixedly connected to one side of the box body, and openings are formed in the top surface and the other side of the box body; a first through hole is formed in the bottom of the inner side of theinner wall of the water tank, a switching valve is disposed in the first through hole, and a second through hole is formed in one side of the box body; the interior of the first through hole communicates with the interior of the second through hole, and the second through hole communicates with the interior of the box body; the top surface of the water tank is fixedly connected to one end of a hose, and the other end of the hose is arranged in the box body, and a floating plate is fixedly mounted on the periphery of the other end of the hose. Sediment in the box body can be pushed directly into the garbage bag through cooperative use of a mud box and a garbage bag, and the mud box can be taken and placed freely; after the mud box is taken out, a sealing cap of the garbage bag containing the sediment is removed, and after the garbage bag is replaced by a new garbage bag, the mud box is put back, and the sediment is not in contact with the mud box, and cleaning of the mud box by a user is not needed, so that time and labor are saved.