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.

 

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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.

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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.

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