CN205856299U - A kind of dehydrating municipal sludge reducing energy consumption optimizes system - Google Patents

Abstract

The utility model discloses a kind of dehydrating municipal sludge reducing energy consumption and optimize system, including diluting tank, conditioner and diaphragm filter press, blender and drug feeding pipeline it is provided with on conditioner, a temporary reservoir of high-order dilution it is provided with between described dilution of sewage pond and conditioner, the mud of the dilution of diluting tank is first passed to the temporary reservoir of high-order dilution by liquid delivery pump, the temporary reservoir of high-order dilution is connected to conditioner by adjutage, described pressure feed pump is divided into high-pressure delivery pump and low-pressure delivery pump, high-pressure delivery pump and low-pressure delivery pump are connected to conditioner in the pipeline of filter press membrane by stop valve respectively, described high-pressure delivery pump, low-pressure delivery pump, the electric machine controller that liquid delivery pump uses is frequency-variable controller.This utility model is suitable for agitator and the screw conveyor of sludge treatment technique by exploitation, improves dewatering efficiency, reduces energy consumption, medicine consumption and power consumption, producers quantity and labor intensity is greatly lowered, reduces the cost of labor of operation.

Description

A kind of dehydrating municipal sludge reducing energy consumption optimizes system

Technical field

This utility model relates to sewage disposal, optimizes system particularly to a kind of dehydrating municipal sludge reducing energy consumption, logical Cross the adjustment to equipment connecting relation, and use frequency conversion motor to significantly reduce the energy of sludge dewatering system power drive Consumption.

Background technology

For a long time, China's " heavily sewage disposal, light Treatment of Sludge " always, specific resistance to filtration policy put into effect the time, Lagging far behind sewage disposal policy in implementation dynamics, the specific resistance to filtration policy put into effect also substantially belongs to the rule of directiveness Fixed." 15 ", the Eleventh Five-Year Plan period country's major investment are supporting in construction and the pipe network of sewage treatment plant, throw for Treatment of Sludge Money is the most not enough, has formed serious history debt in Treatment of Sludge.Owing to Treatment of Sludge standard is low, policy implementation dynamics Weak, arbitrarily to abandon, topple over, the phenomenon of simple dry in the sun mud generally exists, most mud are properly disposed, according to the Ministry of Construction Statistics, by 2010, China's municipal sludge handling rate was less than 25%, and sludge pollution is extremely serious, was badly in need of a large amount of construction Sewage sludge harmlessness treatment facility.Therefore, specific resistance to filtration has become as one of link that China's environmental improvement falls behind the most, I The existing sludge treatment device of state and technical matters, generally existence processes the problems such as energy consumption is high, medicament expense is high.

Summary of the invention

The purpose of this utility model is to propose a kind of dehydrating municipal sludge system reducing energy consumption, closes by connecting equipment The adjustment of system, and use frequency conversion motor to significantly reduce the energy consumption of sludge dewatering system power drive.

To achieve these goals, the technical solution of the utility model is: a kind of dehydrating municipal sludge system reducing energy consumption System, including receiving the diluting tank of municipal sludge, conditioner and diaphragm filter press, conditioner is provided with blender and chemical feed pipe Road, the mud after conditioning through pressure feed pump be delivered to filter press membrane extruding, formed filtrate and extrudate output, its, Being provided with a temporary reservoir of high-order dilution between described dilution of sewage pond and conditioner, the mud of diluting tank dilution is dirty by liquid The temporary reservoir of high-order dilution first delivered to by mud delivery pump, and the temporary reservoir of high-order dilution is connected to conditioner by putting dirty pipe, puts dirty Guan Shangshe It is equipped with control valve；Described pressure feed pump is divided into high-pressure delivery pump and low-pressure delivery pump, high-pressure delivery pump and low-pressure delivery Pump is connected to conditioner in the pipeline of filter press membrane by stop valve respectively, described high-pressure delivery pump, low-pressure delivery pump, liquid The electric machine controller that sludge delivery pump uses is frequency-variable controller, and the extruding of described filter press membrane is board-like autoclave diaphragm formula filter pressing Machine.

Scheme is further: described drug feeding pipeline includes liquor drug feeding pipeline and solid material drug feeding pipeline, described solid material Drug feeding pipeline is that a spiral feeds distributor, and described distributor includes solid material conveying tube and arranges in solid material conveying tube Spiral conveyor rod, the bottom of solid material conveying tube is provided with through hole, and solid material delivers to the solid material of distributor through a conveyer In conveying pipe, stir forward conveying through spiral conveyor rod and be distributed uniformly by through hole and to fall in conditioner.

Scheme is further: described conveyer is conveying worm.

Scheme is further: the charging aperture of described conveying worm and a solid material blanking tower connect, solid material blanking Tower is respectively arranged with elevating hopper and hopper, and hopper is connected by the charging aperture of a pneumatic discharge valve with conveying worm Connect.

Scheme is further: described solid material is Calx material.

The beneficial effects of the utility model are: agitator and helical feed by the applicable sludge treatment technique of exploitation set Standby, improve dewatering efficiency, reduce energy consumption, medicine consumption and power consumption etc..By technological process and electric control system being transformed, greatly Amplitude reduction producers' quantity and labor intensity, reduce the cost of labor of operation.This project implementation has taken into account fixed-end forces And comprehensive utilization of resources, and in processing cost, there is stronger competitiveness.Reduce equipment attrition and energy that sludge conditioning homogenizes Consumption, automaticity is high, and project operation per tour only needs 3 people.

With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is this utility model system structure schematic diagram.

Detailed description of the invention

A kind of dehydrating municipal sludge system reducing energy consumption, as it is shown in figure 1, include receiving the diluting tank 1 of municipal sludge, adjusting Reason pond 2 and diaphragm filter press 3, diluting tank connects dilution water source 4, and conditioner is provided with blender 5 and drug feeding pipeline, conditioning After mud be delivered to filter press membrane 3 through pressure feed pump and extrude, form filtrate and extrudate output, wherein, in described dirt Being provided with a temporary reservoir 6 of high-order dilution between water diluting tank and conditioner, the high-order bottom surface diluting temporary reservoir must exceed tune Reason pond 500mm, the mud of the dilution of diluting tank first carries by being arranged on the diving liquid sludge delivery pump 7 bottom diluting tank 1 Diluting temporary reservoir to a high position, the temporary reservoir of high-order dilution is connected to conditioner by putting dirty pipe, puts and is provided with control valve on dirty pipe 8；Described pressure feed pump is divided into high-pressure delivery pump 9 and low-pressure delivery pump 10, high-pressure delivery pump and low-pressure delivery pump to lead to respectively Crossing stop valve 11 and be connected to conditioner in the pipeline of filter press membrane, described high-pressure delivery pump, low-pressure delivery pump, liquid sludge are defeated The electric machine controller sending pump to use is frequency-variable controller, controls described high-pressure delivery respectively according to the duty of diaphragm filter press Pump, the opening and turning off of low-pressure delivery pump；Wherein: described diaphragm filter press is board-like autoclave diaphragm formula pressure filter, up to More than 10kg/ square centimeter.

In embodiment: described drug feeding pipeline includes liquor drug feeding pipeline 12 and solid material drug feeding pipeline 13, liquor chemical feed pipe Road is connected to liquid-mixing medicinal cupping 14, and described solid material drug feeding pipeline is that a spiral feeds distributor, and described distributor includes solid Body material conveying tube and the spiral conveyor rod 13-1 arranged in solid material conveying tube, the bottom of solid material conveying tube is provided with through hole, Solid material is through a conveying, and 15 deliver in the solid material conveying tube of distributor, stirs forward conveying by logical through spiral conveyor rod Hole is distributed uniformly and falls in conditioner.

In embodiment: described conveyer is conveying worm.

In embodiment: the charging aperture of described conveying worm and a solid material blanking tower 16 connect, solid material blanking tower Being respectively arranged with elevating hopper 16-1 and hopper 16-2, hopper is by a pneumatic discharge valve 16-3 and conveying worm Charging aperture connects.

Valve in embodiment is electric control valve, and system is controlled by an industrial control unit (ICU) (PLC), arranges in pipeline There are pressure transducer, conditioner and diluting tank and dilute in temporary reservoir and be respectively arranged with liquid level sensor.Pressure transducer and Liquid level sensor signal is transferred to industrial control unit (ICU), and the output of industrial control unit (ICU) connects electric control valve, blender, pressure conveying Pump, liquid delivery pump and diaphragm filter press, it is achieved automatically controlling of overall process.

The mud produced in sewage disposal process is by being pumped in sludge treatment pond, through the quenched (medicament of dosing PAC, addition accounts for about 1 ‰；Flocculant (wood flour or quick lime), addition accounts for about 1%), stir process, mud is abundant with medicament Reaction, moisture percentage in sewage sludge conditioning is 95% ~ 96%, then by being pumped in mud diaphragm filter press, after filtering squeezing, point Solution becomes dry mud and the filtrate of moisture within 60%.

Membrane filter pressing dewatering work principle: membrane filter pressing dehydration special equipment is diaphragm filter press, and it is successfully by variable Filter chamber diaphragm pressing technology is applied to the high-efficiency dehydration of municipal sludge, utilizes the variable filter that monolateral membrane filtration plate, filter cloth form Room filter element, under conditions of oil cylinder press filter plate, carries out solid-liquid separation with feed pump pressure, send from two ends by mud slip Entering in each sealing filter chamber being made up of filter plate and diaphragm plate, the filtration power utilizing pump to provide makes filtrate be arranged by filter medium Go out, until material is full of filter chamber, completes preliminary liquid-solid two-phase and separate；After pan feeding filtration stage terminates, use diaphragm pressing Filter cake is squeezed by technology, promotes by compressed gas (or water under high pressure) barrier film of diaphragm plate to heave, filter cake is produced one direction Compression, destroy " arch bridge " structure formed between granule, make the further densification of filter cake, the filtrate remaining in particulate interspaces is squeezed Go out；During diaphragm pressing, the structure technology of monolateral embedded diaphragm filtering plate, special diaphragm structure and material is used to join Side, under the effect of compressed gas (or water under high pressure), fully heaves diaphragm within the scope of elastic force balance, according to mud Characteristic, continuity tympanum 25～60 minutes, the filtrate remaining in mud granule gap is extruded effectively, reaches deep dehydration mummification Effect.

Process characteristic.Advantage: the advantage of board-like autoclave diaphragm formula pressure filter is directly settle at one go 97% moisture Mud Direct Dehydration within 60% moisture, meets recirculating fluidized bed and enters the requirement that stove burns, and at low dense stage dewatering efficiency very Height, energy consumption is relatively low.The mud of sewage treatment plant moisture content 80%-85% → mud pulp → sludge conditioning tank (chemicals dosing plant) → height Low pressure sewage sludge feed pump → autoclave diaphragm pressure filter → autoclave diaphragm squeezing → moisture content about 60% mud.Fed by increase Shake grid, common paddle stirrer is changed into diving mixer (impeller and lifting device are special), sludge lifting pump (impeller spy System), discharging spiral conveyor (liner is special), diaphragm filter press filter pressing mode etc..

Claims (5)

1. reduce a dehydrating municipal sludge system for energy consumption, including receiving the diluting tank of municipal sludge, conditioner and barrier film pressure Filter, conditioner is provided with blender and drug feeding pipeline, and the mud after conditioning is delivered to filter press membrane through pressure feed pump and squeezes Pressure, forms filtrate and extrudate output, it is characterised in that be provided with a high position between described diluting tank and conditioner dilute Releasing temporary reservoir, the mud of diluting tank dilution first delivers to the temporary reservoir of high-order dilution, high-order dilution storage temporarily by liquid sludge delivery pump Pond is connected to conditioner by putting dirty pipe, puts and is provided with control valve on dirty pipe；Described pressure feed pump is divided into high-pressure delivery Pump and low-pressure delivery pump, high-pressure delivery pump and low-pressure delivery pump are connected to conditioner to the pipe of filter press membrane by stop valve respectively Lu Zhong, the electric machine controller that described high-pressure delivery pump, low-pressure delivery pump, liquid sludge delivery pump use is frequency-variable controller, institute Stating filter press membrane extruding is board-like autoclave diaphragm formula pressure filter.

Sludge dewatering system the most according to claim 1, it is characterised in that described drug feeding pipeline includes liquor drug feeding pipeline With solid material drug feeding pipeline, described solid material drug feeding pipeline is that a spiral feeds distributor, and described distributor includes solid material Conveying pipe and the spiral conveyor rod arranged in solid material conveying tube, the bottom of solid material conveying tube is provided with through hole, solid material warp One conveyer is delivered in the solid material conveying tube of distributor, stirs forward conveying through spiral conveyor rod and is divided uniformly by through hole Cloth falls in conditioner.

Sludge dewatering system the most according to claim 2, it is characterised in that described conveyer is conveying worm.

Sludge dewatering system the most according to claim 3, it is characterised in that the charging aperture of described conveying worm and one Solid material blanking tower connects, and solid material blanking tower is respectively arranged with elevating hopper and hopper, and hopper passes through a pneumatic discharging Valve is connected with the charging aperture of conveying worm.

5. according to the sludge dewatering system described in Claims 2 or 3 or 4, it is characterised in that described solid material is Calx material.