CN205295120U - Efficiency of dehydration is improved sludge processing apparatus - Google Patents

Abstract

The utility model provides an efficiency of dehydration is improved sludge processing apparatus, sludge heavy metal biochemical treatment jar including mud successively lets in is in proper order personally experienced sth. Part of the body, a sludge dewatering takes care of jar body and a sludge dewatering drying tank body, sludge dewatering drying tank body includes a jar body, personally experience sth. Part of the body and a real empty can for lower jar, upward be connected with the pressure device who communicates with last jar of inner chamber of personally experiencing sth. Part of the body on jar body, be used for carrying out the filter layer that the grain slag separates to mud solution lower jar of internal being equipped with, the lower jar of body still is provided with a microwave heating equipment in the top of filter layer. The utility model discloses in, through at the lower jar of internal microwave heating equipment that sets up to microwave heating equipment can release department microwave, makes the hydrone in the mud carry out interact with this microwave and heated, thereby makes the moisture that mud contained to spread and to volatilize, reaches the purpose of dry mud.

Description

A kind of sludge treatment device that improves dewatering efficiency

Technical field

The utility model relates to a kind of sludge treatment device, refers in particular to a kind of sludge treatment device that improves dewatering efficiency.

Background technology

In recent years, along with the rapid growth of wastewater treatment in China ability and handling rate, a large amount of phenomenons that produce of excess sludge have been brought. Current national urban wastewater treatment firm mud only has fraction to carry out sanitary landfills, soil utilization, burning and building materials utilization etc., and major part is not carried out normalized processing disposal.

In the process of sewage disposal; in some sewage, contain a large amount of larger particles and be difficult to the suspension precipitating, some particle and suspension are difficult to again by biochemical degradation, now conventionally can carry out processed to sewage; formation filter residue after processed, filter residue can be used as filler recovery utilization.

As at Granted publication CN204434447U, it is disclosed that name is called the Chinese utility model patent of " a kind of follow-on sludge vacuum dewater unit ", in this patent, record a kind of follow-on sludge vacuum dewater unit, comprise enclosed sewage surge tank, described sewage surge tank is connected with a dehydrating tube, one vacuum tube and some are for being inserted into the tube connector of sludge water, the other end of this vacuum tube is connected for the vavuum pump vacuumizing with one, the other end of this tube connector is removably socketed with a sewage permeation joint, this sewage permeation joint is used for stopping that mud enters this tube connector in company with current, this vacuum tube and tube connector are interconnected by described sewage surge tank, one end of described dehydrating tube is arranged on the bottom of sewage surge tank and is connected with a water pump, and the other end is arranged on the outside on sewage surge tank top, is also provided with a water-level control apparatus on this dehydrating tube, the top of described sewage surge tank is also provided with a limit switch, and this limit switch is for controlling the unlatching of described vavuum pump or cutting out.

In this patent, by negative-pressure vacuum, the moisture in mud is separated by sewage permeation joint and mud, and pump in sewage surge tank, complete the processed of mud, but this device exists that sewage dehydration rate is low, dewatering efficiency is lower and filter residue is difficult for the feature of processing and utilizing.

Utility model content

The utility model provides a kind of sludge treatment device that improves dewatering efficiency, and its main purpose is to overcome that the sewage dehydration rate that existing sludge treatment device exists is low, dewatering efficiency is lower and filter residue is difficult for the defect of processing and utilizing.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

Improve a sludge treatment device for dewatering efficiency, comprise a sludge heavy-metal biochemical treatment tank body, a sludge dewatering conditioning tank body and the dry tank body of a sludge dewatering that mud successively passes into successively, the dry tank body of described sludge dewatering comprises the upper tank body of lower ending opening and the lower tank of upper end open and vacuum tank, the lower end of upper tank body and the upper end of lower tank removably link together, on upper tank body, be connected with the pressue device being communicated with the inner chamber of upper tank body, on upper tank body, be also provided with the mud inlet in order to mud solution is sent into upper tank body, in lower tank, be provided with the filter course in order to mud solution is carried out to grain slag separation, on lower tank, there is the first pressure modulating opening, the first pressure modulating opening is arranged on the below of filter course, vacuum tank is provided with the second pressure modulating opening, the first pressure modulating opening is communicated with by tube connector with the second pressure modulating opening, on vacuum tank, be connected with vacuum extractor, on lower tank, be provided with the first row mouth of a river, the first row mouth of a river is connected to sewage plash by first row water pipe, the first row mouth of a river is arranged on the below of the first pressure modulating opening, on vacuum tank, be provided with the second row mouth of a river, the second row mouth of a river is arranged on the below of the second pressure modulating opening, second row cross current is passed through to sewage plash in the second row mouth of a river, described lower tank is also provided with a microwave heating equipment and the 3rd pressure modulating opening above filter course, described microwave heating equipment comprises a plurality of microwave launchers and is coated on the metallic shield ring in this microwave launcher outside, this metallic shield ring outside is installed on described lower tank internal face, described lower tank is provided with the metallic shield net of coated whole the 3rd pressure modulating opening in the 3rd pressure modulating opening position, described vacuum tank is provided with the 4th pressure modulating opening, described the 3rd pressure modulating opening is communicated with by tube connector with the 4th pressure modulating opening.

Further, described sludge dewatering conditioning tank body comprises that one second tank body and is arranged at the second drainage hood of this second tank interior, on described the second tank body, be provided with one for passing through the second charging aperture of mud raw material, one the second blow vent being also connected with Blast mechanism for throwing in second dog-house and of conditioning material, described the second blow vent is positioned at the bottom of described the second tank body, described the second drainage hood comprises one second upper shed, one is positioned at the second under shed directly over described the second blow vent and extends to the second upper shed and the second drainage channel of forming by the second under shed, described the second charging aperture is communicated in described the first blow vent, described sludge dewatering conditioning tank body also comprises that one is arranged at the second pressure sensor module and one second relief valve being electrically connected with this second pressure sensor module on the second tank body top, and described the second relief valve is for controlling the discharge of the second tank interior liquid level top air and cutting out.

Further, described sludge heavy-metal biochemical treatment tank body comprises one first tank body, one is arranged at the first drainage hood and a Blast mechanism of this first tank interior, on described the first tank body, be provided with one for throwing in the first charging aperture containing the mud raw material of heavy metal, one the first blow vent being connected with Blast mechanism for throwing in first dog-house and of nutrient solution of oxidation-containing sulfur bacillus, described the first blow vent is positioned at the bottom of described the first tank body, described the first drainage hood comprises one first upper shed, one is positioned at the first under shed directly over described the first blow vent and extends to the first upper shed and the first drainage channel of forming by the first under shed.

Further, the inwall of described lower tank is provided with ring-type brace table, and described filter course comprises sieve tray and be arranged on the filter screen on sieve tray, and sieve tray is erected on ring-type brace table.

Further, be also provided with one in order to monitor the pressure monitoring device of upper tank body chamber pressure in described upper tank body, described pressure monitoring device comprises showing the first Pressure gauge of malleation and in order to show the second Pressure gauge of negative pressure.

Further, described the first charging aperture and the first dog-house are respectively arranged at the both sides of described the first tank body upper end, described the first tank body is a Heat Conduction Material tank body, described the first tank body is also provided with a heating part, this heating part is one around the snake pipe that is arranged at described the first tank body lateral wall, this snake pipe and one is contained with the thermostat that adds hot fluid and is connected, described heavy metal biochemical treatment tank body also comprises that one is arranged at the first pressure sensor module and one first relief valve being electrically connected with this first pressure sensor module on the first tank body top, described the first relief valve is for controlling the discharge of the first tank interior liquid level top air and cutting out.

Further, the microwave wavelength that the mesh of described metallic shield net produces than default described microwave launcher is little.

Further, described Blast mechanism is provided with a triple valve, and the other two-way of this triple valve is connected on described the first blow vent and the second blow vent.

Further, be provided with a plurality of spaced apart conduction holes on described the second drainage hood, described conduction hole top is provided with the drainage cap protruding outwardly.

Further, in described the second dog-house, throw in three kinds of conditioning material that conditioning material comprises that priority adds successively, the conditioning material adding is for the first time that thermal power plant ash flies, the conditioning material adding is for the second time ferric chloride solution or cationic polyelectrolyte, and the conditioning material adding is for the last time that polymethacrylates is both sexes co-polymers.

Compared to the prior art the beneficial effect that, the utility model produces is:

1, the utility model is simple in structure, practical, by the dry tank body of a sludge dewatering is set, in use sewage solution is transported in upper tank body from mud inlet, afterwards mud inlet is closed, start pressue device and vacuum extractor, pressure during by pressue device in upper tank body strengthens, make pressure decreased in lower tank to vacuum state by vacuum tank, so between upper tank body and lower tank, form larger pressure differential, the moisture that is arranged in the sewage solution of upper tank body can pass through rapidly filter course, body refuse is stayed the top of filter course, in the time going back residual moisture in body refuse, due to the water seal effect of moisture, can mineralization pressure between upper tank body and lower tank poor, ensure to carry out fast grain slag separation, after the moisture removal in body refuse is complete, between upper tank body and lower tank, realize and being communicated with by the pore in body refuse, the pressure of upper tank body reduces rapidly, can judge that by pressure monitoring device mud is processed complete, by lower tank is dismantled, and body refuse is cleaned out, body refuse can be used in the fields such as building filler or compound fertilizer and recycle. in the utility model, the moisture permeating from filter course mainly drains into sewage plash by the first row mouth of a river, and steam in lower tank can enter vacuum tank and drained into sewage intake pool from the second row mouth of a river by tube connector, thereby ensure that moisture can fully discharge.

2, in the utility model, by microwave heating equipment is set in lower tank, and microwave heating equipment can release place microwave, make hydrone and this microwave in mud interact and be heated, thereby the contained moisture of mud can be spread and volatilize, reach the object of sludge-drying.

3, in the utility model, by metallic shield ring and metallic shield net are set, can make the microwave can repeated reflection in microwave heating equipment, avoid the microwave producing in dry run to leak. Also can make mud be dried by homogeneous heating, further improve the drying effect of mud simultaneously.

4, in the utility model, by a heavy metal biochemical treatment tank body is set, can be passed into by the bottom of the first tank body by air-flow, air-flow is flowed in the first drainage hood by the first under shed of the first drainage hood, in the first drainage hood, form irregular eddy current and negative pressure, mud, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of drainage hood, rise in the first drainage hood and fully mix, and be back in the first tank body by the first upper shed outflow the sedimentation of the first drainage hood under the effect of air-flow, be back to the mud in the first tank body, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of the first drainage hood by airflow function again, rise in the first drainage hood, thereby iterative cycles between the first tank body and the first drainage hood, make heavy metal and the thiobacillus thiooxidant of mud obtain sufficient gas-solid contact effect, make oxidation and the acidization stripping from mud of the oxidated Thiobacillus of heavy metal, eliminate the content of heavy metal in mud.

5,, in the utility model, the conditioning material adding not only comprises that thermal power plant ash flies this physics conditioning material, also comprises that ferric chloride solution and polymethacrylates are these two kinds of chemical conditioning material of both sexes co-polymer. Add thermal power plant ash and fly drainage, while coordinating high molecular polymer to carry out multiple conditioning, can reduce the chemical feeding quantity of high molecular polymer, and promote the dewatering efficiency of mud, increase the solid content of sludge cake. In addition by two kinds of chemical conditioning material are set, and utilize the reciprocation between these two kinds of chemical conditioning material, cause misfit form, reach better flocculating effect, increase the adhesion between mud granule, form more greatly and stronger glue plumage, reduces polyelectrolyte and residue in solution, improves the dehydration property of mud simultaneously.

6, in the utility model, by the cooperation of bleeding between near the 3rd pressure modulating opening the 4th pressure modulating opening and microwave heating equipment on vacuum tank, cause the inner negative pressure that forms of microwave heating equipment, and then generation one air-flow, the top air inlet of this air-flow lower tank, and through vacuum tank, take away the water vapour that microwave heating process produces, steam can be delivered in vacuum tank by tube connector, and be condensed into aqueous water at vacuum tank, and be delivered in sewage plash by second row water pipe, so can ensure that the moisture in lower tank is disposed in sewage plash comparatively fully.

7, in the utility model, by a sludge dewatering conditioning tank body is set, after conditioning material adds, the forced air producing by Blast mechanism produces bubble by the bottom of the second tank body, and injected in the second drainage channel by the second under shed of the second drainage hood, and be back in the second tank body by the second upper shed outflow the sedimentation of the second drainage hood under the effect of air-flow, the mud raw material and the three kinds of conditioning material that are back in the second cell body are inhaled into from the second under shed of the second drainage hood by airflow function again, rise in the second drainage hood, thereby iterative cycles between the second tank body and the second drainage hood, make mud raw material and three kinds of conditioning material obtain sufficient gas-solid contact effect, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect.

8, in the utility model, by the first pressure sensor module and the first relief valve are set, and coordinate the ventilation effect of Blast mechanism, can form a pressures cycle treatment system, after the first tank body internal cause ventilation causes air pressure to increase, can increase the infiltration to mud internal void of Interstitial Water and thiobacillus thiooxidant, the contact frequency of oxidation reinforced Thiobacillus and mud, improve the ability of heavy metal in its picked-up mud, when the first tank body internal pressure increases to after 700kPa, the first pressure sensor module detects after this pressure peak threshold value, touching Blast mechanism stops ventilating in the first tank body, and start the first relief valve simultaneously, above-mentioned first relief valve control the first tank body exhaust, the pressure of the first tank interior is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the first tank body is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take heavy metal and reacted product out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, the exposed amount of heavy metal in mud is increased, greatly improve the gas-solid contact effect of heavy metal and thiobacillus thiooxidant, strengthen its biochemical reaction, greatly improve the removal effect of Heavy Metals in Sludge, in the time that the pressure in the first tank body returns to general atmosphere pressure, the first pressure sensor module detects after this pressure minimum point threshold value, touch Blast mechanism ventilates again in the first tank body, and close the first relief valve simultaneously, again the first tank interior boost in pressure is again depressurized to atmospheric pressure after 700kPa, constantly complete the circulation of supercharging and decompression, until mud completes the removal of heavy metal.

9, in the utility model, by the second pressure sensor module and the second relief valve are set, and coordinate the ventilation effect of Blast mechanism, can form another pressures cycle treatment system, after the second tank body internal cause ventilation causes air pressure to increase, can increase the infiltration of Interstitial Water and three kinds conditioning material to mud internal void, strengthen the contact frequency of three kinds of conditioning material and mud, improve the effect of its opsonic reaction, when the second tank body internal pressure increases to after 700kPa, the second pressure sensor module detects after this pressure peak threshold value, touching Blast mechanism stops ventilating in the second tank body, and start the second relief valve simultaneously, above-mentioned second relief valve control the second tank body exhaust, the pressure of the second tank interior is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the second tank body is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take the product after opsonic reaction out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, make polyelectrolyte and the increase of organic exposed amount in mud, greatly improve the gas-solid contact effects of itself and three kinds conditioning material, strengthen its physical and chemical reaction, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect, in the time that the pressure in the first tank body returns to general atmosphere pressure, the first pressure sensor module detects after this pressure minimum point threshold value, touch Blast mechanism ventilates again in the first tank body, and close the first relief valve simultaneously, again the first tank interior boost in pressure is again depressurized to atmospheric pressure after 700kPa, constantly complete the circulation of supercharging and decompression, until mud completes overall dehydrating and conditioning.

Brief description of the drawings

Fig. 1 is the structural representation of sludge treatment device described in embodiment.

Fig. 2 is the enlarged diagram at A place in Fig. 1.

Detailed description of the invention

Detailed description of the invention of the present utility model is described with reference to the accompanying drawings.

See figures.1.and.2. A kind of sludge treatment device, comprises a sludge heavy-metal biochemical treatment tank body 1, a sludge dewatering conditioning tank body 2 and the dry tank body 3 of a sludge dewatering that mud 9 successively passes into successively.

See figures.1.and.2. described sludge heavy-metal biochemical treatment tank body 1 comprises one first tank body 10, one is arranged at the first drainage hood 11 and a Blast mechanism 4 of these the first tank body 10 inside, on described the first tank body 10, be provided with one for throwing in the first charging aperture 101 containing the mud raw material of heavy metal, one the first blow vent 103 being connected with Blast mechanism 4 for throwing in first dog-house 102 and of nutrient solution of oxidation-containing sulfur bacillus, described the first blow vent 103 is positioned at the bottom of described the first tank body 10, described the first drainage hood 11 comprises one first upper shed, one is positioned at the first under shed directly over described the first blow vent 103 and extends to the first upper shed and the first drainage channel of forming by the first under shed. described the first charging aperture 101 and the first dog-house 102 are respectively arranged at the both sides of described the first tank body 10 upper ends, described the first tank body 10 is a Heat Conduction Material tank body, described the first tank body 10 is also provided with a heating part, this heating part is one around the snake pipe 108 that is arranged at described the first tank body 10 lateral walls, this snake pipe 108 and one is contained with the thermostat that adds hot fluid and is connected, described heavy metal biochemical treatment tank body 1 also comprises that one is arranged at the first pressure sensor module 17 and one first relief valve 18 being electrically connected with this first pressure sensor module 17 on the first tank body 10 tops, described the first relief valve 18 is for controlling the discharge of the inner liquid level of the first tank body 10 top air and cutting out.

See figures.1.and.2. described sludge dewatering conditioning tank body 2 comprises that one second tank body 20 and is arranged at the second drainage hood 21 of these the second tank body 20 inside, on described the second tank body 20, be provided with one for passing through the second charging aperture 22 of mud raw material, one the second blow vent 24 being also connected with Blast mechanism 4 for throwing in second dog-house 23 and of conditioning material, described the second blow vent 24 is positioned at the bottom of described the second tank body 20, described the second drainage hood 21 comprises one second upper shed, one is positioned at the second under shed directly over described the second blow vent 24 and extends to the second upper shed and the second drainage channel of forming by the second under shed, described the second charging aperture 22 is communicated in described the first blow vent 103. described sludge dewatering conditioning tank body 2 also comprises that one is arranged at the second pressure sensor module 27 and one second relief valve 28 being electrically connected with this second pressure sensor module 27 on the second tank body 20 tops, and described the second relief valve 28 is for controlling the discharge of the inner liquid level of the second tank body 20 top air and cutting out. on described the second drainage hood 21, be provided with a plurality of spaced apart conduction holes 210, described conduction hole 210 tops are provided with the drainage cap 211 protruding outwardly. in described the second dog-house 23, throw in three kinds of conditioning material that conditioning material comprises that priority adds successively, the conditioning material adding is for the first time that thermal power plant ash flies, the conditioning material adding is for the second time ferric chloride solution or cationic polyelectrolyte, and the conditioning material adding is for the last time that polymethacrylates is both sexes co-polymers.

See figures.1.and.2. the dry tank body 3 of described sludge dewatering comprises the upper tank body 30 of lower ending opening and the lower tank 31 of upper end open, the upper end of the lower end of upper tank body 30 and lower tank 31 removably links together, on upper tank body 30, be connected with the pressue device 32 being communicated with the inner chamber of upper tank body 30, on upper tank body 30, be also provided with the mud inlet 33 in order to mud solution is sent into upper tank body 30, in lower tank 31, be provided with the filter course 34 in order to mud solution is carried out to grain slag separation, on lower tank 31, there is the first pressure modulating opening 310, the first pressure modulating opening 310 is arranged on the below of filter course 34, also comprise vacuum tank 35, vacuum tank 35 is provided with the second pressure modulating opening 350, the first pressure modulating opening 310 is communicated with by tube connector with the second pressure modulating opening 350, on vacuum tank 35, be connected with vacuum extractor 36, on lower tank 31, be provided with the first row mouth of a river 312, the first row mouth of a river 312 is connected to sewage plash 37 by first row water pipe, the first row mouth of a river 312 is arranged on the below of the first pressure modulating opening 310, on vacuum tank 35, be provided with the second row mouth of a river 352, the second row mouth of a river 352 is arranged on the below of the second pressure modulating opening 350, second row cross current is passed through to sewage plash 37 in the second row mouth of a river 352, described lower tank 31 is also provided with a microwave heating equipment 38 and the 3rd pressure modulating opening 311 above filter course 34, described microwave heating equipment 38 comprises a plurality of microwave launchers 380 and is coated on the metallic shield ring 381 in these microwave launcher 380 outsides, these metallic shield ring 381 outsides are installed on described lower tank 31 internal faces, described lower tank 31 is provided with the metallic shield net 382 of coated whole the 3rd pressure modulating opening 311 in the 3rd pressure modulating opening 311 positions, described vacuum tank 35 is provided with the 4th pressure modulating opening 351, described the 3rd pressure modulating opening 311 is communicated with by tube connector with the 4th pressure modulating opening 351. the lower end of described upper tank body 30 is connected with upper flange, and the upper end of described lower tank 31 is connected with lower flange, and upper flange and lower flange removably link together by connector, between upper flange and lower flange, is provided with silicone gasket. the inwall of described lower tank 31 is provided with ring-type brace table, and described filter course 34 comprises sieve tray 340 and be arranged on the filter screen 341 on sieve tray 340, and sieve tray 340 is erected on ring-type brace table. in described upper tank body 30, be also provided with one in order to monitor the pressure monitoring device 305 of upper tank body 30 chamber pressures, described pressure monitoring device 305 comprises showing the first Pressure gauge of malleation and in order to show the second Pressure gauge of negative pressure. the microwave wavelength that the mesh of described metallic shield net 382 produces than default described microwave launcher 380 is little.

See figures.1.and.2. Described Blast mechanism 4 is provided with a triple valve, and the other two-way of this triple valve is connected on described the first blow vent 103 and the second blow vent 24.

See figures.1.and.2. The course of work of the present utility model is a kind of method for sludge treatment.

A processing method for mud, comprises the following steps: a, heavy metal biochemical treatment; B, sludge dewatering conditioning; C, sludge dewatering are dried.

Wherein, described heavy metal biochemical treatment comprises, pending mud is dropped into one to be contained with in the first tank body 10 of nutrient solution of oxidation-containing sulfur bacillus, wherein these the first tank body 10 bottoms are provided with the first blow vent 103, inside is inserted with the first drainage hood 11, by the first blow vent 103 to the interior aeration of the first tank body 10, air-flow is flowed to the first drainage hood 11 is interior by the first under shed of the first drainage hood 11, in the irregular eddy current of the interior formation of the first drainage hood 11 and negative pressure, mud, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of drainage hood, rise to the interior abundant mixing of the first drainage hood 11, and be back in the first tank body 10 by the first upper shed outflow the sedimentation of the first drainage hood 11 under the effect of air-flow, be back to the mud in the first tank body 10, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of the first drainage hood 11 by airflow function again, rise in the first drainage hood 11, thereby iterative cycles between the first tank body 10 and the first drainage hood 11, make heavy metal and the thiobacillus thiooxidant of mud obtain sufficient gas-solid contact effect, make oxidation and the acidization stripping from mud of the oxidated Thiobacillus of heavy metal, eliminate the content of heavy metal in mud. in this step, by the first pressure sensor module 17 and the first relief valve 18 are set, and coordinate the ventilation effect of Blast mechanism 4, can form a pressures cycle treatment system, after the first tank body 10 internal cause ventilations cause air pressure to increase, can increase the infiltration to mud internal void of Interstitial Water and thiobacillus thiooxidant, the contact frequency of oxidation reinforced Thiobacillus and mud, improve the ability of heavy metal in its picked-up mud, when the first tank body 10 internal pressures increase to after 700kPa, the first pressure sensor module 17 detects after this pressure peak threshold value, touching Blast mechanism 4 stops to the interior ventilation of the first tank body 10, and start the first relief valve 18 simultaneously, above-mentioned the first relief valve 18 is controlled the first tank body 10 exhausts, the pressure of the first tank body 10 inside is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the first tank body 10 is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take heavy metal and reacted product out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, the exposed amount of heavy metal in mud is increased, greatly improve the gas-solid contact effect of heavy metal and thiobacillus thiooxidant, strengthen its biochemical reaction, greatly improve the removal effect of Heavy Metals in Sludge, in the time that the pressure in the first tank body 10 returns to general atmosphere pressure, the first pressure sensor module 17 detects after this pressure minimum point threshold value, touch Blast mechanism 4 again to the interior ventilation of the first tank body 10, and close the first relief valve 18 simultaneously, after again the first tank body 10 internal pressures being risen to 700kPa, be again depressurized to atmospheric pressure, constantly complete the circulation of supercharging and decompression, until mud completes the removal of heavy metal.

Wherein, described sludge dewatering conditioning comprises, successively add successively the process of three kinds of conditioning material, the conditioning material adding is for the first time that thermal power plant ash flies, the conditioning material adding is for the second time ferric chloride solution or cationic polyelectrolyte, and the conditioning material adding is for the last time that polymethacrylates is both sexes co-polymers. in this step, when mud raw material and three kinds conditioning material drops in the second tank body 20 completely, described Blast mechanism 4 is by pressurization, improve the pressure of these the second tank body 20 inside, after the second tank body 20 internal cause ventilations cause air pressure to increase, can increase the infiltration of Interstitial Water and three kinds conditioning material to mud internal void, strengthen the contact frequency of three kinds of conditioning material and mud, improve the effect of its opsonic reaction, when the second tank body 20 internal pressures increase to after 700kPa, the second pressure sensor module 27 detects after this pressure peak threshold value, touching Blast mechanism 4 stops to the interior ventilation of the second tank body 20, and start the second relief valve 28 simultaneously, above-mentioned the second relief valve 28 is controlled the second tank body 20 exhausts, the pressure of the second tank body 20 inside is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the second tank body 20 is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take the product after opsonic reaction out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, make polyelectrolyte and the increase of organic exposed amount in mud, greatly improve the gas-solid contact effects of itself and three kinds conditioning material, strengthen its physical and chemical reaction, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect, in the time that the pressure in the first tank body 10 returns to general atmosphere pressure, the first pressure sensor module 17 detects after this pressure minimum point threshold value, touch Blast mechanism 4 again to the interior ventilation of the first tank body 10, and close the first relief valve 18 simultaneously, after again the first tank body 10 internal pressures being risen to 700kPa, be again depressurized to atmospheric pressure, constantly complete the circulation of supercharging and decompression, until mud completes overall dehydrating and conditioning.

More specifically, in described sludge dewatering conditioning process, mud raw material and three kinds of conditioning material are entered in the second tank body 20 by the second charging aperture 22 and the second dog-house 23 respectively, and the forced air producing by Blast mechanism 4 produces bubble by the bottom of the second tank body 20, and injected in the second drainage channel by the second under shed of the second drainage hood 21, and be back in the second tank body 20 by the second upper shed outflow the sedimentation of the second drainage hood 21 under the effect of air-flow, the mud raw material and the three kinds of conditioning material that are back in the second cell body are inhaled into from the second under shed of the second drainage hood 21 by airflow function again, rise in the second drainage hood 21, thereby iterative cycles between the second tank body 20 and the second drainage hood 21, make mud raw material and three kinds of conditioning material obtain sufficient gas-solid contact effect, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect.

Wherein, described sludge dewatering is dry to be comprised, in use, water-containing sludge mixing material is drawn in upper tank body 30, afterwards mud inlet 33 is closed, start pressue device 32 and vacuum extractor 36, by pressue device 32, the pressure in upper tank body 30 is strengthened, make pressure decreased in lower tank 31 to vacuum state by vacuum tank 35, so between upper tank body 30 and lower tank 31, form larger pressure differential, the water that is arranged in the water-containing sludge mixing material of upper tank body 30 can pass through rapidly filter course 34, mud is stayed the top of filter course 34, and due to can mineralization pressure between upper tank body 30 and lower tank 31 poor, ensure to carry out fast Separation of Solid and Liquid, after Separation of Solid and Liquid is complete, start microwave launcher 380 and discharge microwave, hydrone effect in microwave and mud and being heated, make the contained moisture of mud to spread and to evaporate in air, reach effect of sludge-drying. after the moisture removal in body refuse is complete, between upper tank body 30 and lower tank 31, realize and being communicated with by the pore in body refuse, the pressure of upper tank body 30 reduces rapidly, can judge that by pressure monitoring device 305 mud is processed complete, by lower tank 31 is dismantled, and body refuse is cleaned out, body refuse can be used in the fields such as building filler or compound fertilizer and recycle. in this step, the moisture permeating from filter course 34 mainly drains into sewage plash 37 by the first row mouth of a river 312, and steam in lower tank 31 can enter vacuum tank 35 and drained into sewage intake pool from the second row mouth of a river 352 by tube connector, thereby ensure that moisture can fully discharge.

Meanwhile, adopt metallic shield technology to make the microwave can repeated reflection microwave heating equipment 38 in, avoid the microwave producing in dry run to leak, and then can make mud be dried by homogeneous heating, the drying effect of raising mud. Carrying out in microwave heating process, vacuum tank 35 can act on simultaneously, cause the inner negative pressure that forms of lower tank 31, thereby produce an air-flow, take away the water vapour that heating process produces, then after the mesh of metallic shield net 382, enter vacuum tank 35 and from the second row mouth of a river 352, drain into sewage intake pool.

Compared to the prior art the beneficial effect that, the utility model produces is:

1, the utility model is simple in structure, practical, by a heavy metal biochemical treatment tank body is set, can be passed into by the bottom of the first tank body 10 by air-flow, air-flow is flowed to the first drainage hood 11 is interior by the first under shed of the first drainage hood 11, in the irregular eddy current of the interior formation of the first drainage hood 11 and negative pressure, mud, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of drainage hood, rise to the interior abundant mixing of the first drainage hood 11, and be back in the first tank body 10 by the first upper shed outflow the sedimentation of the first drainage hood 11 under the effect of air-flow, be back to the mud in the first tank body 10, thiobacillus thiooxidant and nutrient solution are inhaled into from the bottom of the first drainage hood 11 by airflow function again, rise in the first drainage hood 11, thereby iterative cycles between the first tank body 10 and the first drainage hood 11, make heavy metal and the thiobacillus thiooxidant of mud obtain sufficient gas-solid contact effect, make oxidation and the acidization stripping from mud of the oxidated Thiobacillus of heavy metal, eliminate the content of heavy metal in mud.

2, in the utility model, by a sludge dewatering conditioning tank body 2 is set, after conditioning material adds, the forced air producing by Blast mechanism 4 produces bubble by the bottom of the second tank body 20, and injected in the second drainage channel by the second under shed of the second drainage hood 21, and be back in the second tank body 20 by the second upper shed outflow the sedimentation of the second drainage hood 21 under the effect of air-flow, the mud raw material and the three kinds of conditioning material that are back in the second cell body are inhaled into from the second under shed of the second drainage hood 21 by airflow function again, rise in the second drainage hood 21, thereby iterative cycles between the second tank body 20 and the second drainage hood 21, make mud raw material and three kinds of conditioning material obtain sufficient gas-solid contact effect, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect.

3,, in the utility model, the conditioning material adding not only comprises that thermal power plant ash flies this physics conditioning material, also comprises that ferric chloride solution and polymethacrylates are these two kinds of chemical conditioning material of both sexes co-polymer. Add thermal power plant ash and fly drainage, while coordinating high molecular polymer to carry out multiple conditioning, can reduce the chemical feeding quantity of high molecular polymer, and promote the dewatering efficiency of mud, increase the solid content of sludge cake. In addition by two kinds of chemical conditioning material are set, and utilize the reciprocation between these two kinds of chemical conditioning material, cause misfit form, reach better flocculating effect, increase the adhesion between mud granule, form more greatly and stronger glue plumage, reduces polyelectrolyte and residue in solution, improves the dehydration property of mud simultaneously.

4, in the utility model, by the dry tank body 3 of a sludge dewatering is set, in use sewage solution is transported in upper tank body 30 from mud inlet 33, afterwards mud inlet 33 is closed, start pressue device 32 and vacuum extractor 36, pressure during by pressue device 32 in upper tank body 30 strengthens, make pressure decreased in lower tank 31 to vacuum state by vacuum tank 35, so between upper tank body 30 and lower tank 31, form larger pressure differential, the moisture that is arranged in the sewage solution of upper tank body 30 can pass through rapidly filter course 34, body refuse is stayed the top of filter course 34, in the time going back residual moisture in body refuse, due to the water seal effect of moisture, can mineralization pressure between upper tank body 30 and lower tank 31 poor, ensure to carry out fast grain slag separation, after the moisture removal in body refuse is complete, between upper tank body 30 and lower tank 31, realize and being communicated with by the pore in body refuse, the pressure of upper tank body 30 reduces rapidly, can judge that by pressure monitoring device 305 mud is processed complete, by lower tank 31 is dismantled, and body refuse is cleaned out, body refuse can be used in the fields such as building filler or compound fertilizer and recycle. in the utility model, the moisture permeating from filter course 34 mainly drains into sewage plash 37 by the first row mouth of a river 312, and steam in lower tank 31 can enter vacuum tank 35 and drained into sewage intake pool from the second row mouth of a river 352 by tube connector, thereby ensure that moisture can fully discharge.

5, in the utility model, by at the interior microwave heating equipment 38 that arranges of lower tank 31, and microwave heating equipment 38 can release place microwave, make hydrone and this microwave in mud interact and be heated, thereby the contained moisture of mud can be spread and volatilize, reach the object of sludge-drying.

6, in the utility model, by the cooperation of bleeding between near the 3rd pressure modulating opening 311 the 4th pressure modulating opening 351 on vacuum tank 35 and microwave heating equipment 38, cause the inner negative pressure that forms of microwave heating equipment 38, and then generation one air-flow, the top air inlet of this air-flow lower tank 31, and through vacuum tank 35, take away the water vapour that microwave heating process produces, steam can be delivered in vacuum tank 35 by tube connector, and be condensed into aqueous water at vacuum tank 35, and be delivered in sewage plash 37 by second row water pipe, so can ensure that the moisture in lower tank 31 is disposed in sewage plash 37 comparatively fully.

7, in the utility model, by metallic shield ring 381 and metallic shield net 382 are set, can make the microwave can repeated reflection in microwave heating equipment 38, avoid the microwave producing in dry run to leak. Also can make mud be dried by homogeneous heating, further improve the drying effect of mud simultaneously.

8, in the utility model, by the first pressure sensor module 17 and the first relief valve 18 are set, and coordinate the ventilation effect of Blast mechanism 4, can form a pressures cycle treatment system, after the first tank body 10 internal cause ventilations cause air pressure to increase, can increase the infiltration to mud internal void of Interstitial Water and thiobacillus thiooxidant, the contact frequency of oxidation reinforced Thiobacillus and mud, improve the ability of heavy metal in its picked-up mud, when the first tank body 10 internal pressures increase to after 700kPa, the first pressure sensor module 17 detects after this pressure peak threshold value, touching Blast mechanism 4 stops to the interior ventilation of the first tank body 10, and start the first relief valve 18 simultaneously, above-mentioned the first relief valve 18 is controlled the first tank body 10 exhausts, the pressure of the first tank body 10 inside is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the first tank body 10 is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take heavy metal and reacted product out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, the exposed amount of heavy metal in mud is increased, greatly improve the gas-solid contact effect of heavy metal and thiobacillus thiooxidant, strengthen its biochemical reaction, greatly improve the removal effect of Heavy Metals in Sludge, in the time that the pressure in the first tank body 10 returns to general atmosphere pressure, the first pressure sensor module 17 detects after this pressure minimum point threshold value, touch Blast mechanism 4 again to the interior ventilation of the first tank body 10, and close the first relief valve 18 simultaneously, after again the first tank body 10 internal pressures being risen to 700kPa, be again depressurized to atmospheric pressure, constantly complete the circulation of supercharging and decompression, until mud completes the removal of heavy metal.

9, in the utility model, by the second pressure sensor module 27 and the second relief valve 28 are set, and coordinate the ventilation effect of Blast mechanism 4, can form another pressures cycle treatment system, after the second tank body 20 internal cause ventilations cause air pressure to increase, can increase the infiltration of Interstitial Water and three kinds conditioning material to mud internal void, strengthen the contact frequency of three kinds of conditioning material and mud, improve the effect of its opsonic reaction, when the second tank body 20 internal pressures increase to after 700kPa, the second pressure sensor module 27 detects after this pressure peak threshold value, touching Blast mechanism 4 stops to the interior ventilation of the second tank body 20, and start the second relief valve 28 simultaneously, above-mentioned the second relief valve 28 is controlled the second tank body 20 exhausts, the pressure of the second tank body 20 inside is reduced to atmospheric pressure by 700kPa, the microbubble that the top of described the second tank body 20 is a large amount of because exhaust produces, gas in Interstitial Water can disengage and take the product after opsonic reaction out of mud hole. because the hole of mud is too small, the speed that when decompression, gas disengages is often greater than the speed that gas is discharged from hole, therefore causes mud hole internal pressure to increase. in the time that mud hole internal pressure is greater than the pressure that mud granule wall can bear, just can cause mud granule implode or burst, make polyelectrolyte and the increase of organic exposed amount in mud, greatly improve the gas-solid contact effects of itself and three kinds conditioning material, strengthen its physical and chemical reaction, thereby can reduce yield stress and the outward appearance viscosity of mud, contribute to improve sludge dewatering effect, in the time that the pressure in the first tank body 10 returns to general atmosphere pressure, the first pressure sensor module 17 detects after this pressure minimum point threshold value, touch Blast mechanism 4 again to the interior ventilation of the first tank body 10, and close the first relief valve 18 simultaneously, after again the first tank body 10 internal pressures being risen to 700kPa, be again depressurized to atmospheric pressure, constantly complete the circulation of supercharging and decompression, until mud completes overall dehydrating and conditioning.

Above are only detailed description of the invention of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.

Claims (9)

1. a sludge treatment device that improves dewatering efficiency, is characterized in that: comprise a sludge heavy-metal biochemical treatment tank body, a sludge dewatering conditioning tank body and the dry tank body of a sludge dewatering that mud successively passes into successively, the dry tank body of described sludge dewatering comprises the upper tank body of lower ending opening and the lower tank of upper end open, the lower end of upper tank body and the upper end of lower tank removably link together, on upper tank body, be connected with the pressue device being communicated with the inner chamber of upper tank body, on upper tank body, be also provided with the mud inlet in order to mud solution is sent into upper tank body, in lower tank, be provided with the filter course in order to mud solution is carried out to grain slag separation, on lower tank, there is the first pressure modulating opening, the first pressure modulating opening is arranged on the below of filter course, also comprise vacuum tank, vacuum tank is provided with the second pressure modulating opening, the first pressure modulating opening is communicated with by tube connector with the second pressure modulating opening, on vacuum tank, be connected with vacuum extractor, on lower tank, be provided with the first row mouth of a river, the first row mouth of a river is connected to sewage plash by first row water pipe, the first row mouth of a river is arranged on the below of the first pressure modulating opening, on vacuum tank, be provided with the second row mouth of a river, the second row mouth of a river is arranged on the below of the second pressure modulating opening, second row cross current is passed through to sewage plash in the second row mouth of a river, described lower tank is also provided with a microwave heating equipment and the 3rd pressure modulating opening above filter course, described microwave heating equipment comprises a plurality of microwave launchers and is coated on the metallic shield ring in this microwave launcher outside, this metallic shield ring outside is installed on described lower tank internal face, described lower tank is provided with the metallic shield net of coated whole the 3rd pressure modulating opening in the 3rd pressure modulating opening position, described vacuum tank is provided with the 4th pressure modulating opening, described the 3rd pressure modulating opening is communicated with by tube connector with the 4th pressure modulating opening.

2. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 1, it is characterized in that: described sludge dewatering conditioning tank body comprises that one second tank body and is arranged at the second drainage hood of this second tank interior, on described the second tank body, be provided with one for passing through the second charging aperture of mud raw material, one the second blow vent being also connected with Blast mechanism for throwing in second dog-house and of conditioning material, described the second blow vent is positioned at the bottom of described the second tank body, described the second drainage hood comprises one second upper shed, one is positioned at the second under shed directly over described the second blow vent and extends to the second upper shed and the second drainage channel of forming by the second under shed, described the second charging aperture is communicated in described the first blow vent, described sludge dewatering conditioning tank body also comprises that one is arranged at the second pressure sensor module and one second relief valve being electrically connected with this second pressure sensor module on the second tank body top, and described the second relief valve is for controlling the discharge of the second tank interior liquid level top air and cutting out.

3. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 2, it is characterized in that: described sludge heavy-metal biochemical treatment tank body comprises one first tank body, one is arranged at the first drainage hood and a Blast mechanism of this first tank interior, on described the first tank body, be provided with one for throwing in the first charging aperture containing the mud raw material of heavy metal, one the first blow vent being connected with Blast mechanism for throwing in first dog-house and of nutrient solution of oxidation-containing sulfur bacillus, described the first blow vent is positioned at the bottom of described the first tank body, described the first drainage hood comprises one first upper shed, one is positioned at the first under shed directly over described the first blow vent and extends to the first upper shed and the first drainage channel of forming by the first under shed.

4. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 1, it is characterized in that: the inwall of described lower tank is provided with ring-type brace table, described filter course comprises sieve tray and be arranged on the filter screen on sieve tray, and sieve tray is erected on ring-type brace table.

5. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 4, it is characterized in that: in described upper tank body, be also provided with one in order to monitor the pressure monitoring device of upper tank body chamber pressure, described pressure monitoring device comprises showing the first Pressure gauge of malleation and in order to show the second Pressure gauge of negative pressure.

6. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 3, it is characterized in that: described the first charging aperture and the first dog-house are respectively arranged at the both sides of described the first tank body upper end, described the first tank body is a Heat Conduction Material tank body, described the first tank body is also provided with a heating part, this heating part is one around the snake pipe that is arranged at described the first tank body lateral wall, this snake pipe and one is contained with the thermostat that adds hot fluid and is connected, described heavy metal biochemical treatment tank body also comprises that one is arranged at the first pressure sensor module and one first relief valve being electrically connected with this first pressure sensor module on the first tank body top, described the first relief valve is for controlling the discharge of the first tank interior liquid level top air and cutting out.

7. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 1, is characterized in that: the microwave wavelength that the mesh of described metallic shield net produces than default described microwave launcher is little.

8. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 3, is characterized in that: described Blast mechanism is provided with a triple valve, the other two-way of this triple valve is connected on described the first blow vent and the second blow vent.

9. a kind of sludge treatment device that improves dewatering efficiency as claimed in claim 8, is characterized in that: on described the second drainage hood, be provided with a plurality of spaced apart conduction holes, described conduction hole top is provided with the drainage cap protruding outwardly.