Guangzhou Longyue Environmental Protection Machinery Equipment
Contact: Luo Manager
Address: No. 46, Hongmian Avenue, Huadu District, Guangzhou
1. Transmission device
The transmission shaft is composed of a transmission shaft, a seat seal bearing and a cycloid reducer. The transmission shaft is made of high quality natural rubber to increase the friction coefficient of the transmission. The speed of the motor is controlled by the frequency converter to ensure the smooth speed of the filter belt.
2.Chemical reaction apparatus
This machine uses a non-blocking static mixer (mixed dynamic mixer for materials that are not easily flocculated), used for mixing sludge and chemical liquids. It is installed in the sludge distribution tank and can be used to inject flocculant from high pressure around After the mud tube enters the mixing reactor, the sludge particles can be quickly brought into collision contact with the diluted polyelectrolyte solution, and the optimal flocculating effect and dewatering effect can be achieved by adjusting the flow rate of the sludge and the chemical liquid.
After passing through the flocculation mixer, the sludge enters the feed distribution device, and the material is uniformly distributed on the gravity concentration section by diversion and overflow plates, flat plates, and side baffles, in order to increase the gravity dewatering efficiency of the sludge. A plurality of water guide rakes are installed at the top, and the free water in the upper part of the accumulated sludge is leaked into the screen.
4, Tensioning device
The role of the tensioning device is to tighten the upper and lower filter belts, drive all the rollers through the main drive roller, and make it dehydrate by applying a certain pressing force and shear force to the cake. The machine uses a buffered cylinder to tension The tension is controlled by adjusting the pressure.
This machine frame is made of high-quality national standard square tube and is firmly welded. The surface is graded by sa2.5 sandblasting and derusting, and then the fluorocarbon paint is heavy anti-corrosion treatment or thermal spray zinc treatment. Its anti-corrosion ability can reach 10 More than a year.
6、Gravity dehydration device
The main function of the gravity dewatering device is to remove the free water and interstitial water in the material, reduce the fluidity of the material, prepare for the next step of pressure filtration, and the structure is divided into independent filter mesh gravity dewatering (ie thickener ), plus the gravity dewatering of the upper and lower laminate filters, after 6-11 meters of long-term gravity dewatering, a large amount of free water in the sludge is fully filtered out, at this time the sludge can withstand larger extrusion force.
7、Pre-press dewatering porous roller
The pre-press dehydration porous roller is the largest dewatering roller that can be discharged from both inside and outside of filtered water, consisting of small holes evenly distributed on the roller surface. After the sludge is pressed, it initially forms a filter cake.
8、High pressure deep dewatering roller
The high-pressure depth dewatering roller is composed of several rollers with different diameters. The roller surface is covered with high-quality natural rubber or PE, and the two filter belts are formed in the form of S-shape in turn between the rollers. The diameter of the rollers gradually decreases from large to large. The formation of a certain amount of pressure, so that the pressure on the material from the small gradually increased, in the role of the extrusion force and shear force, and gradually form a more dry filter cake.
9、Pair of nip rolls squeeze
If the high-pressure filter cake is still not ideal, it is necessary to perform a strong squeeze on the nip roller to achieve maximum solid-liquid separation of the sludge. Each pair of nip rollers is a fixed one, and the other is a pressure roller for the airbag. The outer surface of the moving roller contains a high-quality natural rubber with a lower hardness, so that it can be pressed with the soft contact of the sludge, and the proper pressure can be adjusted to ensure the passage of the sludge. And fully dehydrated.
10、Deviation correction device
The automatic correcting system adopts a device composed of cylinders, solenoid valves, proximity switches and other components to perform automatic tracking and correction. The system is sensitive, reliable, and has a long service life. The operating position of the filter belt is stable and centered. Generally, the deviation error does not exceed 15 mm.
Pneumatic devices are used to control the straining of the filter belts, correct the deflection, and adjust the pressure on the nip rollers. The operation and pneumatic control components are sensitive, reliable, and durable.
The pressure filter mesh is woven from polyester filaments, and is divided into a terminal interface and an endless interface. Different filter screens are used according to the physical characteristics of the sludge. The machine adopts high strength, good water permeability, easy blocking, smooth surface and solid recovery rate. High-quality, easy-to-clean, easy-to-remove high-quality strainer.
The cleaning device is composed of a water spray connecting pipe and nozzle, a roller brush, a valve, a waterproof cover, and a filter. The nozzle is made of 304 stainless steel, and each nozzle can be cleaned and replaced separately. The rotation of the filter belt and the fan-shaped spray water will effectively and continuously remove the residual sludge adhering to the filter belt.
The purpose of the filter squeegee is to scrape the discharged filter cake, the squeegee pressure is adjustable, and the wear of the filter screen is guaranteed to be small.
15、Bearing and bearing seat
In order to prevent corrosion, all bearings and bearing seats adopt double V-ring seals. The bearing seat is made of ductile iron. This machine adopts double-row self-aligning roller bearings, which has large bearing capacity and long service life.
16、Centralized control cabinet
The whole sludge dewatering work system is controlled by a set of distribution control cabinets (manual contact control or PLC controller). The electrical control cabinet is the host and its supporting equipment—sludge pump, cleaning pump, mixer, and liquid pump. , Air compressors, conveyors and other equipment to provide power, start, stop and motor short circuit, overheat / overload, lack of phase control protection and alarm.
17、Filtrate collection device
In order to prevent flushing water and filtrate from leaking or splashing out, all flushes and filtrates are collected through the water tray, which can be discharged separately or concentrated.
Safety protection nets and warning signs are set on both sides of the machine. The fault emergency response system composed of electronic control limit pull wire switches can monitor all actions in the filter belt adjustment process. When the adjustment system causes excessive deviation in the centering process, the limit is limited. The bit switch triggers and shuts down.