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The operation of the stacked screw sludge dewatering machine is divided into two modes: manual mode
- 2020-09-09-

The operation of the stacked screw sludge dewatering machine is divided into two modes: manual mode


Today, the editor mainly brings us the essentials of the automatic mode operation of the stacked screw sludge dewatering machine: Before the instrument enters the automatic mode, please test the machine and the vortex pump in the manual operation mode. In automatic operation, all switches are switched to the "automatic" position. The main drive, pre-processing punishments and cleaning pumps are running, looking forward to the sludge. The water level controller checks again whether the ditch sludge stock has reached the standard set water level (the water level controller E1, E2, E3 three electrode setting columns, the water level controller is selected by the user). If the sludge volume is high and the water level is high, the main drive, rotating centrifugal unit, cleaning, air conditioning box, sludge pump and metering equipment will start things. If the smoke is low in sludge water, the machine will automatically block and contain, connect and accumulate the high water level of sludge, and the water level controller will even shut down and start the machine itself.


The daily operation of the stacked screw sludge dewatering machine requires the following indecent observations: often check the drying and dewatering effect. If the evacuation of the liquid (or) the filtrate turbidity and solid speed decrease, the reasons should be analyzed in time and methods should be adopted to solve it. If the influence of sludge dewatering is frequently observed and the solid content of the sludge cake is reduced, analytical solutions should be used to resolve the situation. Frequently inspect the operating status of the stacked screw sludge dewatering machine, and correct the abnormal phenomenon to ensure normal operation. The stacking screw type sludge dewatering machine should be arranged with sufficient flushing time every time, when the dryer, the inside of the machine and cleaning, other cleaning, reduce the odor. Otherwise, it is very difficult to dry the mud after washing. In accordance with the requirements of the stacked screw sludge dewatering machine, medical indecent inspections and machine maintenance are often carried out. The invented dryer is damaged with mud and sand, and if it is severely damaged, it should be replaced in time. Always pay attention to check the stacked screw sludge dewatering machine is easy to wear, if necessary, change it.


Make a good analysis and measurement record. The screw-on sludge dewatering machine can better explain the function of the screw-on sludge dewatering machine and prevent it from failing. With the development of the times, the stacking screw sludge dewatering machine is more and more widely used. The digestion technology of the stacking screw sludge dewatering machine will be introduced below, I hope you can assist you in your understanding. The stacked screw sludge dehydrator belongs to the screw press dehydrator, which can reduce the sedimentation tank and the sludge concentration tank, and save the cost of sewage treatment and plant construction. It is widely used in municipal sewage treatment and punishment projects and petrochemical, light industry, chemical fiber, paper, leather industry water treatment and punishment systems, and the stacked screw sludge dehydrator automatically updates the filter cake filter instead of the traditional filter filter. The updated filter cake filtration technology ensures the continuous evacuation effect of the mud dehydrator. Through the change of screw diameter and pitch, strong extrusion is induced, and the tiny cracks between the swimming ring and the fixed ring are realized to squeeze the dewatered sludge. , Is a new type of solid-liquid evacuation device.


The machine must be disassembled under the following conditions: clean the machine, the outside of the machine and the surrounding environment before shutting down, prepare suitable lifting tools and tools and means to remove all small parts; prepare some soft things, such as bedding sleepers or carpets Wait for the material; after more preparations to make a merit, according to the following delete step by step. Drum: Loosen and remove the bolts to be alert and open the solid-liquid collection chamber cover, change the past (help support), the changes of the motor and the differential protective cover; release the pump delivery pipe connecting flange bolts to evacuate; loosen the feed pipe cover bolts , Save the water supply pipe. Note: At this time, write down the relative position between the pipe heads, you can make a mark or measurement and record.


Before preparing for the screw stacker, follow the technical requirements for the dewatering of sludge with the diluted mixed flocculant. Please note: Strictly follow the requirements of the technicians, provide the technical selection of the flocculant varieties, and the appropriate specifications. The factory is required to use a flocculant: polyacrylamide (cationic or anionic, with a molecular weight of 10-15 million). Attention should be paid to the dilution ratio of flocculant and water. The factory must dilute the ratio of 0.5 to 1‰. Note that the flocculant should be slowly inserted into the water during stirring, and in the process of intervening, if colloidal clumps are formed, it needs to be slowed down. According to the type of flocculant, the stirring speed is controlled at 150 revolutions per minute. The mixing time is 1 to 3 hours. Please use within 30 hours. After the concentration meets the requirements, check the water content of the sludge to see if it has good fluidity.


The operation measures of the screw stacker system, before the inspection, the screw stacker: turn on the electrical and pneumatic switches, open the clean valves, and check related matters, please follow the following procedures: turn on the power switch, and power on the control box. Turn on the air source switch (or turn on the air compressor), deliver the air to the air control box of the host, and adjust the total air pressure to 4 kg. Tighten the mesh belt, adjust the tension and pressure, and adjust the air pressure to 2~3kg. Start the host, adjust the belt speed to 4m/min, start the network with the cleaning pump, and connect the water pressure of 0.3~0.5 mpa. Check: Leakage of pneumatic components. Will the trachea bend and cause the air pressure to drop? Is the water pressure and water normal? Is it sensitive and reliable? The mesh belt is tight and the nozzle is blocked. If the belt is not aligned correctly, the deflection mechanism is damaged.


The screw stacker starts the sludge dewatering process, starts the chemical pump, adjusts the pump flow, and extracts the diluted flocculant into the mixer. After 5 minutes, the sludge pump starts and the sludge flow rate is adjusted. The flocculation effect of sludge was indecently inspected, and the mixing ratio of sludge and flocculant was adjusted to achieve the flocculation effect. Check whether the water content of the mud cake is qualified. If necessary, properly adjust the tension and speed of the mesh belt. Check if the scraper is clean. Check whether the belt is clean, adjust the water volume and water pressure appropriately when necessary. Regardless of whether the belt deviates or not, automatic adjustment is normal. If necessary, manual adjustment can be used. Contain, contain sludge pumps, chemical pumps. Connect the washing water and flush the mesh belt until the mesh belt is completely washed. Contain the host and clean the water pump. Loosen the tension mesh belt.