Litter retaining device
(57) Abstract:The invention relates to techniques for wastewater treatment. The device contains a filter grate with parallel vertical rods and horizontal ties, tines, chains mounted on sprockets mounted on the shaft, the actuator and the mechanism of drop. The shaft with the sprocket drive and the flushing mechanism mounted on the vertical rods of the filter grid. The chain is made of plates having a diamond shape, and are mounted on vertical rods of the filter grid. The distance between adjacent parallel plates each circuit is larger than the width at the vertical rods of the filter grids, and the tines are attached to the circuit wafer. The technical result consists in increasing reliability, improving operational performance and reducing the metal. 1 Il. The invention relates to techniques for wastewater treatment and can be used to remove debris (litter) from wastewater.Known litter retaining device containing a carrier frame, the filter grating consisting of parallel vertical rods and horizontal ties, tines, chains, have been fitted what atcom of the known device is the low reliability due to the fact, as the centering device are the teeth of the tines, which are subject to wear, because of which it is possible misalignment of teeth with openings between the vertical rods of the lattice and, therefore, not excluded jamming of the mechanism or breakage. In addition, the presence of a frame in the device increases its intensity and affects the operational characteristics of litter retaining device due to the reduction of the working section of the filtration grid and, consequently, increase its hydraulic resistance.The aim of the invention is to increase reliability, improve performance and decrease of metal litter retaining device.This objective is achieved in that litter retaining device containing a filter grate with parallel vertical rods and horizontal ties, tines, chains mounted on sprockets mounted on the shaft, the actuator and the mechanism of drop shaft with the sprocket drive and the flushing mechanism mounted on the vertical rods of the filter grids, and the chain is made of plates having a diamond shape, and are mounted on vertical rods filtrating filter rods of the lattice, and the tines are attached to the plates of the chain.The drawing shows a General view (2 projections) litter retaining device which is the subject of the present invention.Litter retaining device includes a filter grating 1 with parallel vertical rods 2 and horizontal tie-rods 3, the tines 4, the circuit 5 mounted on the sprockets 6, mounted on the shaft 7, the actuator 8 and the flushing mechanism 9.The shaft 7 with the sprocket 6, the actuator 8 and the flushing mechanism 9 mounted on vertical rods 10 filter grille 1. Circuit 5 is made of plates 11, having a diamond shape, and are mounted on vertical rods 10 of the filtration grid 1, and the distance between adjacent parallel plates 11 each circuit 5 is greater than width at vertical rods 10 of the filtration grid 1, and the tines 4 are attached to the plates 11 of the chain 5.All the vertical rods 2 and 10 are combined in a single rigid structure. horizontal ties 3.The shaft 7 mounted in bearings fixed to the levers 12, pivotally connected to vertical rods 10 can be rotated on the axis 13. In the lower part of the screen 1 in the extreme vertical is HNA its parts are provided with the tensioning device 16.Between the upper ends of the vertical rods 2 and the flushing mechanism 9 is a flat panel display 17. The flushing mechanism 9 is installed to rotate on the shaft 18 fixed to the levers 12. Under the flushing mechanism 9 has a container for collecting the detainee garbage (not shown).Litter retaining device is installed obliquely into the sewage channel (not shown).Work litter retaining device is as follows.With the passage of wastewater through the grate 1 debris found in wastewater, is delayed by vertical rods 2.Circuit 5 by the actuator 8 moves the tines 4 of the filter grid 1 from the bottom up, which raked delayed garbage and transport it along the vertical rods 2 and then on the flat screen 17 to the flushing mechanism 9, which directs the debris into the container.The proposed design of the litter retaining device to the fixing shaft 7 with the sprocket 6, the actuator 8 and the flushing mechanism 9 in the extreme vertical rods 10 of the filtration grid 1 and described above to other structural elements provide sufficient stiffness iget metal device, and also improves the operating characteristics of litter retaining device due to the increase in the working section of the filtration grid 1, a positive consequence is the reduction of hydraulic resistance and increase the throughput of its ability.The implementation of the plates 11 circuits 5 in the form of a rhombus with the distance between adjacent parallel plates on one chain more extreme width of the vertical rods 10, and the fixing of the blades 4 directly to the plates 11 circuit 5 allows the use of vertical rods 10 as guide elements, and the actual circuit 5 as elements that center tines 4, which together increases the reliability of litter retaining device.Thus, the proposed technical solutions increase reliability, improve performance and reduce the intensity of litter retaining device. Litter retaining device containing a filter grate with parallel vertical rods and horizontal ties, tines, chains mounted on sprockets mounted on the shaft, the actuator and the mechanism of flushing, were successfully met different lattice and the chain is made of plates having a diamond shape, and are mounted on vertical rods of the filter grid, and the distance between adjacent parallel plates each circuit is larger than the width at the vertical rods of the filter grids, and the tines are attached to the circuit wafer.
FIELD: waste water treatment.
SUBSTANCE: filling for biofilters used for treatment of waste waters, in particular those from petroleum processing and petrochemical enterprises, contains nonwoven polypropylene material with porosity 80-230 μm, thickness of canvas 0.30-0.55 mm, which is used in amounts 0.45 to 1.43 g/L.
EFFECT: increased strength and created favorable conditions for immobilization of microorganisms and aquatic organisms.
1 tbl, 12 ex
FIELD: cleaning of industrial and household sewage.
SUBSTANCE: invention relates to design of head for immobilizing microorganisms at biological cleaning of sewage and method of its manufacture. Proposed head is made polymeric material in form of tubular element with gauze structurized side surface and through holes for circulation of sewage water made of continuous rope of polymeric material of round or shaped section in form of several layers of coaxial screw spirals with opposite direction of winding. Screw spirals are interconnected in series in places of intersection to form through holes for circulation of sewage water in all directions of system of coordinates. Method of manufacture of head includes forming continuous rope of plasticized polymeric material by extruding and winding it onto mandrel rotating and reciprocating in horizontal plane. Screw spirals, thus formed, are series-connected in places of intersection by thermal gluing with forming of through holes.
EFFECT: improved design of head and method of its manufacture.
4 cl, 10 dwg
FIELD: sewage purification equipment for separate cottages.
SUBSTANCE: the invention is pertaining to the devices for deep purification of household sewage of separately located detached buildings of cottages type, recreation centers, hospitals, sanatoria, and may be used for preparation of sewage for a reuse for needs of showering of plants, sinks and other needs of separately located housings. The sewage purification installation of cottages contains: a septic tank, a bioreactor with cenoses of the adnate and freely-floating microorganisms, having two rotating drums with chutes of the sludge mix interchute cross-flow, thin-layer sludge separators and underpans, and also buckets fixed on wheels of the rotating drums, a device of after-purification made in the form of a filtering tower with a grainy catalytic agent of the first kind, a tank for purified water, a decontamination device in the form of two filter towers filled with catalytic agents of the second and the third kind, containing air ducts for the second, a waste discharge pipeline and an electrified shutter controlled by a command electrical device. Chambers of the septic tank and the first stage of the bioreactor are made with a capability to average consumption of water. The technical result is a decrease of the installation power consumption, simplification of exploitation, full automation and improved quality of the purified sewage liquid.
EFFECT: the invention ensures decreased power input of the installation, simplification of its operation, full automation of the purification process and improved quality of the purified sewage liquid.
2 cl, 1 dwg
FIELD: chemical or physical processes.
SUBSTANCE: catalytic nozzle comprises central cord of the core of the fiber members made of polymeric fiber, e.g. capron, whose diameter exceeds the diameter of individual fiber members by a factor of two. Several fiber members of the nozzle are modified by catalyzers. The ratio of the modified and non-modified fibers is 1:2. The thrown fibers are primarily wound on the central cord, and then the noncorroding metallic cords are wound over the thrown fibers.
EFFECT: enhanced reliability.
1 cl, 1 dwg
FIELD: cleaning of sulfurous alkaline runoff of fuel refining and petrochemical processes.
SUBSTANCE: proposed local cleaning of sulfurous alkaline runoff includes two stages: oxidizing stage performed by means of catalyst (modified phthalocyanine catalyst on polypropylene base) and continued for 24 h at temperature of 60-90°C and delivery of air at flow rate of 20-25 m3/h for 24 h and biological stage performed in aerobic reactor with use of biocenosis of nonwoven material-geotextile- as packing; sizes of pores of this material range from 80 to 320 mcm at thickness of cloth of 0.30-0.55 mm in the amount of 0.45-1.43 g/l; after first stage of treatment, sulfurous alkaline runoff is diluted with cleaned drainage water at mass ratio of 1:200.
EFFECT: high degree of cleaning; possibility of throwing cleaned water into pools.
2 cl, 1 tbl, 10 ex