PURPOSE

The screw lattice RUM-LAT-SC is designed for efficient separation and transportation of waste in separation systems and is especially preferred in some industries (such as textile, slaughterhouses, pulp and paper mill, etc.).

The principle of fine cleaning implemented by the lattice design is a highly efficient system that protects the subsequent technological equipment and improves the operation of the enterprise/plant by removing solid waste from the process.

Решетка шнековая (винтовая)
Решетка шнековая (винтовая)
Решетка шнековая (винтовая)
Решетка шнековая (винтовая)
Решетка шнековая (винтовая)

THE LINEUP

  • RUMLAT-SC
  • RUMLAT-SC.WP
  • RUMLAT-SC.B
  • RUMLAT-SC.B.WP

USAGE

Municipal sewage treatment plant

Pumping stations

Industrial Wastewater Treatment Plant

  • textile industry
  • brewing industry
  • butchery
  • pulp and paper mills, etc.

ACCESSORIES

  • bug fixing system
  • «infinite» bag
  • level sensor
  • solenoid valve

FEATURES

  • cost-effective and highly efficient system
  • flow rate up to 1000 m3/h
  • screw-spiral of wear-resistant or stainless steel
  • end bearing and intermediate bearings are absent
  • wear resistant polymer liners
  • compact design and a wide range of sizes
  • closed safe and hygienic design
  • combined conveyor and washing press
  • installation angle up to 90°
  • low rotation speed
  • waste compaction up to 30...40%
  • low power consumption
  • low noise
  • automatic cleaning mechanism
  • modular design
  • quick and easy installation
  • low investment and maintenance costs

WORKING PRINCIPLE

Решетка шнековая. Принцип работы

A stream of water enters the channel to the lower open sieve of the lattice and passes through its holes/openings. Solid particles are trapped on the inner surface of the sieve creating an additional filter layer. Later, the sieve is cleaned with brushes installed around the perimeter of the screw and the garbage is transported up where it is unloaded at a convenient level in a container, bag, conveyor or in a special washing and sealing machine. Brushes are washed with spray nozzles with a strong water impact.

In the RUMLAT-SC.WP model lattice, near the discharge neck there is a washing and squeezing zone for garbage, which provides an additional reduction in moisture and dehydration of trapped solid particles.

The integrated flushing of the waste, which serves to further optimizing of the cleaning process, improves the ratio of carbon and nitrogen in the effluent and can significantly save money on waste disposal. When washing, soluble substances are separated from solid contaminants, as a result of which faeces are almost completely washed out and the weight of garbage is significantly reduced (by almost 50%).

The program controls the lattice operation in a timer cycle when the upstream reaches a predetermined level.

EXECUTION

Решетка шнековая (винтовая)

The screw lattice consists of the following main parts:

  • lattice
  • screw conveyor
  • waste washing and spinning module

Parts and components of the unit are made of aisi304 stainless steel (or aisi304L, aisi316, aisi316L on request) processed by etching in an acid solution.

The screw lattice is usually installed in a narrow channel (RUMLAT-SC model) or in a duct (“cabinet design”) on a process pipe system (RUMLAT-SC.B model).

SIZE SELECTION

Решетка шнековая (винтовая)

Depending on the composition of wastewater pollution and the required quality of treatment, the screw lattice can be equipped with a perforated or slotted sieve.

Thanks to the wide range of sieves with different gap widths/perforation diameters and drum diameters, the required grating capacity can be found.

Model
Consumption Q, m3/h *
Slotted sieve
Perforated sieve
0.25 mm0.5 mm1 mm2 mm3 mm4 mm5 mm6 mm
SC3002958861087697115130
SC4005490126252198234270306
SC50079.2144216252198234270306
SC600144234342396324378414468

* The indicated approximate values are valid on an unclogged sieve and conditionally clean water.

SIZES

Решетка шнековая. Размерный ряд
Решетка шнековая. Размерный ряд
Model
L
h
H
B
min.max.max.min.max.min.max.
SC3002500800045011504300320400
SC4002500800050011504300420500
SC5003000900060014504800520600
SC6003500900068016704850620700

Consider the indicated size values as approximate. The equipment is manufactured according to individual technical specifications agreed with the customer.

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