CN111039380A - Concrete wastewater recovery system and process - Google Patents
Concrete wastewater recovery system and process Download PDFInfo
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- CN111039380A CN111039380A CN201911293488.0A CN201911293488A CN111039380A CN 111039380 A CN111039380 A CN 111039380A CN 201911293488 A CN201911293488 A CN 201911293488A CN 111039380 A CN111039380 A CN 111039380A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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Abstract
The invention relates to a concrete wastewater recovery system machine process, which relates to the technical field of concrete wastewater recovery and comprises a sand-stone separator, an adjusting tank and a recovery tank, wherein slurry produced by the sand-stone separator is pumped into the adjusting tank, and the adjusted slurry is pumped into the recovery tank; the adjusting tank comprises a tank body, a stirring mechanism and a sampling mechanism; the stirring mechanism comprises a stirring shaft and an adjusting pipe, the stirring shaft is provided with an adjusting cavity, the stirring shaft is further provided with a plurality of through holes, the through holes are communicated with the adjusting cavity, and the adjusting pipe is communicated with the adjusting cavity through a rotary joint. The invention has the characteristics that the concentration of the adjusted slurry is uniform and the PH value is more than 10, so that the problem of blocking a conveying device caused by uneven concentration can be effectively avoided when the slurry is recycled, and simultaneously, a weakly alkaline mixing environment can be provided when concrete is mixed.
Description
Technical Field
The invention relates to the technical field of concrete wastewater recovery, in particular to a concrete wastewater recovery system and a concrete wastewater recovery process.
Background
During the concrete production process and when concrete tank trucks (commercial concrete trucks) after the concrete is transported are cleaned, a large amount of waste water is generated, and the waste water seriously pollutes the environment, so the waste water needs to be treated.
Publication No.: CN105479602A discloses an improved concrete cement slurry recycling system, which comprises a frame, a hopper, a vibrating screen, a mortar pool, a belt conveyor, a spiral sand separator, a stirring pool, a homogenizing pool and a clean water pool, wherein the hopper and the vibrating screen are both arranged on the frame, the vibrating screen is arranged in an inclined manner, the hopper is positioned right above the upper part of the vibrating screen, the belt conveyor is positioned below a stone discharge port of the vibrating screen, the mortar pool is positioned below the vibrating screen, a discharge port of the mortar pool is connected with the spiral sand separator through a mortar pipe, a water outlet of the spiral sand separator is connected to the stirring pool, the vibrating screen is hooked on the frame through at least two groups of springs, the frame is also provided with a cam mechanism for pushing the vibrating screen to vibrate in a reciprocating manner, the vibrating screen comprises a screen mesh and a baffle plate, the screen mesh is arranged in an inclined manner, the baffle plate is fixed on two sides above the screen mesh, the spiral sand separator comprises a body, the body front end bottom is equipped with the sand outlet, and body end side upper portion is equipped with the delivery port, and stirring pond and clean water pond link to each other with the homogenization pond through thick liquid supply conduit and clear water supply conduit respectively, are equipped with check valve I on the thick liquid supply conduit, are equipped with check valve II on the clear water supply conduit, are equipped with homogenization agitator and concentration detector in the homogenization pond, and concentration detector links to each other with a control system's signal input part, control system's signal output part with check valve I and check valve II electricity are connected.
The above prior art solutions have the following drawbacks: it carries out the homogenization through stirring pond, homogenization pond and clean water basin to the thick liquid, when adjusting thick liquid concentration, through the clear water pump with in the clean water pond in going into the homogenization pond, but because the pump entry point is fixed, consequently makes the thick liquid concentration of different regions in the homogenization pond different, consequently when thick liquid recycles, can be because the too big conveying equipment that leads to of partial thick liquid concentration blocks up.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a concrete wastewater recovery system and a concrete wastewater recovery process, which can effectively avoid the problem that a conveying device is blocked due to excessive concentration of part of slurry.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a concrete waste water recovery system which characterized in that: the slurry water produced by the sand-stone separator is pumped into the regulating tank, and the regulated slurry water is pumped into the recovery tank;
the adjusting tank comprises a tank body, a stirring mechanism and a sampling mechanism; the stirring mechanism comprises a stirring shaft and an adjusting pipe, the stirring shaft is provided with an adjusting cavity, the stirring shaft is further provided with a plurality of through holes, the through holes are communicated with the adjusting cavity, and the adjusting pipe is communicated with the adjusting cavity through a rotary joint.
Through adopting above-mentioned technical scheme, when adjusting the thick liquid water in the cell body, the clear water passes through the control tube and gets into the regulation intracavity, because the through-hole is linked together with the regulation chamber, when the clear water gets into the regulation intracavity, can follow the cell body that gets into in the through-hole, and because the (mixing) shaft is in the rotating condition, consequently when adjusting the thick liquid water, make the area of contact of clear water and thick liquid water bigger, consequently can play good regulatory action to the concentration of thick liquid water, can effectually avoid the problem emergence of the thick liquid concentration difference of different regions in the cell body. Meanwhile, the stirring time can be shortened, and the time required by concrete wastewater recovery is reduced. The working efficiency is improved.
The present invention in a preferred example may be further configured to: the rotary joint is also provided with an air inlet pipe, the air inlet pipe is connected with an air compressor, the stirring shaft is provided with stirring blades, the stirring blades are provided with stirring holes, and the stirring holes are communicated with the adjusting cavity.
Through adopting above-mentioned technical scheme, in the use, after letting in appropriate amount clear water in the equalizing basin, air compressor machine through being connected with the air admission pipe is to the air drum in the adjusting cavity, because the stirring hole that is linked together with the adjusting cavity is equipped with on the stirring vane, the air that gets into the adjusting cavity can be followed and is stirred hole and through-hole internal discharge, consequently, along with the rotation of (mixing) shaft, the air can be in the equalizing basin diffusion, consequently, can play the effect of good supplementary stirring, consequently, the regulation effect to the thick liquid has further been strengthened, make the thick liquid in the equalizing basin more even.
The present invention in a preferred example may be further configured to: the adjusting pipe comprises a concentration adjusting pipe and a PH adjusting pipe, and the concentration adjusting pipe and the PH adjusting pipe are connected with a rotary joint.
Through adopting above-mentioned technical scheme, consequently in the use, can be according to the concentration and the pH value of thick liquid, add clear water or alkaline solution in the equalizing basin, because concentration control tube and pH control tube all are connected with rotary joint, in clear water or alkaline solution all can get into the thick liquid through-hole and stirring hole, along with the stirring of (mixing) shaft, can play good regulating action to the thick liquid.
The present invention in a preferred example may be further configured to: stirring vane vertical setting and stretch out in the liquid level, sampling mechanism set up in stirring vane's top, sampling mechanism include the brace table that is connected with stirring vane, the brace table on be equipped with the sampling piece.
Through adopting above-mentioned technical scheme, consequently, because the setting of sampling piece is on stirring blade, consequently when the sample, can realize the effect of multiple spot sample for the measurement to the concentration of thick liquid and pH value is more accurate.
The present invention in a preferred example may be further configured to: the supporting table is provided with a horizontal sliding table used for moving a sampling piece, the sampling piece comprises a vertical sliding table and a sampling clamp connected with the vertical sliding table, and the vertical sliding table is connected with the horizontal sliding table.
Through adopting above-mentioned technical scheme, when the sample, the test tube is pressed from both sides by the sample and is held to drive vertical slip table by horizontal slip table and remove to treating the sampling area, vertical slip table drives the sample afterwards and presss from both sides the decline, makes the test tube sink into under the liquid level, thereby accomplishes the sample, therefore the use of horizontal slip table and vertical slip table can effectual expansion sample position, consequently further the reinforcing is to the concentration of thick liquid and the measuring accuracy of PH value.
The present invention in a preferred example may be further configured to: the (mixing) shaft in still be equipped with and hold the chamber, the (mixing) shaft on still be equipped with and be used for separating the baffle that holds the chamber and adjust the chamber, rotary joint be located hold the intracavity, the baffle on be equipped with and be used for making rotary joint's output stretch into and adjust intracavity connecting hole, rotary joint on the cover be equipped with rotary seal, rotary seal be connected with the inner wall of connecting hole.
Through adopting above-mentioned technical scheme, consequently when needs adjust the thick liquid in the equalizing basin, when clear water or alkaline solution got into and adjusts the intracavity, can effectually avoid clear water or alkaline solution to get into the problem that holds the intracavity and take place.
The present invention in a preferred example may be further configured to: the sealing device is characterized in that an auxiliary sealing piece is further arranged below the partition plate and comprises a sealing plate, the sealing plate is connected with the partition plate and forms a sealing cavity with the partition plate, a rubber plate is arranged in the sealing cavity, a penetrating hole for the rotary joint to penetrate out is further formed in the rubber plate, and a rotary seal is further arranged on the inner wall of the penetrating hole.
Through adopting above-mentioned technical scheme, consequently when needs adjust the thick liquid in the equalizing basin, clear water or alkaline solution can contact with the lower surface of rubber slab to under the effect of pressure, make rubber slab and baffle laminate mutually, consequently can play sealed effect effectively, avoid clear water or alkaline solution to get into the problem that holds the intracavity and take place.
The present invention in a preferred example may be further configured to: the closing plate still be equipped with the pressure tank, the pressure tank with the seal chamber be linked together, the baffle on be equipped with the seal groove, the rubber slab on be equipped with the sealing washer of seal groove looks adaptation, the cross interface of seal groove be isosceles trapezoid shape, sealing washer cloth von be located the rubber inslot.
Through adopting above-mentioned technical scheme, consequently when the rubber slab received pressure, can force the sealing washer to continue to move in to the seal groove, consequently further strengthened sealed effect.
The present invention in a preferred example may be further configured to: the stirring mechanism comprises a support frame, the support frame is connected with the ground, the support frame is connected with the stirring shaft through a plane bearing, and a motor meshed with the stirring shaft is further arranged on the support frame.
Through adopting above-mentioned technical scheme, consequently when using, drive the (mixing) shaft through the motor and rotate, and (mixing) shaft and support frame are connected through flat bearing, consequently can effectually play the effect of support to the (mixing) shaft for the (mixing) shaft is more stable when rotating.
A process suitable for the concrete wastewater recovery system comprises the following specific steps:
1) collecting: sending the wastewater into a sand-stone separator, separating sand and slurry, and sending the slurry into a regulating reservoir;
2) diluting: feeding clear water into the regulating tank and stirring;
3) stirring: stirring the slurry for 2-4 min;
4) sampling: sampling the slurry stirred in the step 2 at multiple points, wherein the number of sampling points is more than four; and dividing each sample into a and B;
5) and (3) concentration detection: detecting all the samples A in the step 3, if the difference between the highest concentration value and the lowest concentration value of the sample A is more than 1g/ml, discarding the sample B, and performing the step 3-5; if the concentration of the sample A is between 0.8g/ml and 1.2g/ml, entering step 6; if the minimum value of the concentration of the sample A is more than 1.2g/ml, discarding the sample B, and carrying out the step 2-5; if the maximum value of the concentration of the sample A is less than 0.8g/ml, discarding the sample B, and performing the step 1 and the steps 3-5;
6) and (3) pH detection: detecting all samples B, if the pH values of the samples B are all larger than 10, entering a step 7, if the pH values of part of the samples B are smaller than 10, adding an alkaline solution into the regulating reservoir, stirring, and performing the steps 3-5;
7) and sending the slurry in the regulating reservoir into a recovery reservoir for later use.
Through adopting above-mentioned technical scheme, consequently, can effectually stir and adjust the thick liquid through above-mentioned process flow, make the thick liquid concentration that gets into the reserve in the recovery pond be in between 0.8g/ml-1.2g/ml, the pH value is greater than 10, consequently can effectually avoid the thick liquid to block up conveyor's problem to take place, simultaneously when the retrieval and utilization thick liquid, can with the clear water, aggregate and cement mix, consequently, the pH value of thick liquid is greater than 10, can effectually make the mixed environment when mixing be weak alkaline, can effectually avoid the problem of cement hydration product calcium hydroxide decomposition to take place, the problem of the intensity reduction of the concrete that avoids consequently causing takes place.
In summary, the invention includes at least one of the following beneficial technical effects:
when adjusting the thick liquid in the regulating reservoir, through setting up at the epaxial through-hole of stirring, consequently when adjusting concentration, clear water can be followed the through-hole and discharged, because the (mixing) shaft is in the rotating-state, consequently can strengthen the dilution effect greatly, avoids the problem emergence that the thick liquid concentration of different regions is different in the cell body.
Simultaneously, the PH value of the slurry is adjusted to be larger than 10, so that the slurry can be mixed with clear water, aggregate and cement when the slurry is recycled, the mixed environment can be effectively made to be alkalescent, and the problem of concrete strength reduction can be effectively avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of the structure of a conditioning tank of the present invention.
FIG. 3 is a schematic view of the structure of the stirring shaft and the stirring blades.
Fig. 4 is a schematic sectional view of A, A in fig. 3.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 1.
Reference numerals: 11. a sand-stone separator; 12. a support frame; 121. a mounting seat; 13. a recovery tank; 14. a motor; 2. a regulating tank; 21. a tank body; 31. a horizontal sliding table; 32. a vertical sliding table; 321. a connecting plate; 322. a sampling clamp; 41. a conductive slip ring; 42. an adjusting tube; 421. a concentration adjusting pipe; 422. a pH adjusting tube; 423. an air inlet pipe; 43. a rotary joint; 51. a stirring shaft; 511. a through hole; 52. a stirring blade; 521. a stirring hole; 53. a support table; 541. an adjustment chamber; 542. an accommodating chamber; 55. a partition plate; 561. a sealing plate; 562. a rubber plate; 563. a seal ring; 564. rotating and sealing; 565. and a pressure tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the concrete wastewater recovery system disclosed by the invention comprises a sand-stone separator 11, a regulating reservoir 2 and a recovery reservoir 13, wherein slurry produced by the sand-stone separator 11 is pumped into the regulating reservoir 2, and the regulated slurry is pumped into the recovery reservoir 13;
the adjusting tank 2 comprises a tank body 21, a stirring mechanism and a sampling mechanism; referring to fig. 3 and 4, the stirring mechanism includes a stirring shaft 51 and an adjusting tube 42, the stirring shaft 51 is provided with an adjusting cavity 541, the stirring shaft 51 is further provided with a plurality of through holes 511, the through holes 511 are communicated with the adjusting cavity 541, and the adjusting tube 42 is communicated with the adjusting cavity 541 through a rotary joint 43. Referring to fig. 2, the stirring mechanism further includes a support frame 12, the support frame 12 is connected to the ground, for example, fixed to the upper surface of the tank body 21 by bolts, the support frame 12 is connected to the stirring shaft 51 by a flat bearing, a motor 14 engaged with the stirring shaft 51 is further disposed on the support frame 12, a mounting seat 121 is welded on the support frame 12, and the motor 14 is mounted on the mounting seat 121. The rotation speed of the stirring shaft 51 is 1rpm to 5 rpm. The stirring shaft 51 and the stirring blades 52 are both made of corrosion-resistant steel. The slurry can be delivered by a water pump.
Referring to fig. 3, the rotary joint 43 is further provided with an air inlet pipe 423, the air inlet pipe 423 is fixedly connected with a corresponding connector of the rotary joint 43, for example, the air inlet pipe 423 is connected with an air compressor, the stirring shaft 51 is provided with a stirring blade 52, the stirring blade 52 is connected with the stirring shaft 51 by welding, the stirring blade 52 is provided with a stirring hole 521, and the stirring hole 521 is communicated with the adjustment cavity 541.
Referring to fig. 3, the adjusting pipe 42 includes a concentration adjusting pipe 421 and a PH adjusting pipe 422, and both the concentration adjusting pipe 421 and the PH adjusting pipe 422 are connected to the rotary joint 43, for example, by screwing.
Referring to fig. 2 and 3, the stirring blade 52 is vertically arranged and extends out of the liquid level, the sampling mechanism is arranged at the top of the stirring blade 52, the sampling mechanism comprises a supporting platform 53 connected with the stirring blade 52, the supporting platform 53 is connected with the stirring blade 52 through welding, the supporting platform 53 is also connected with the stirring shaft 51 through welding, and a sampling piece is arranged on the supporting platform 53.
Referring to fig. 2 and 3, be equipped with the horizontal slip table 31 that is used for removing the sample piece on supporting bench 53, horizontal slip table 31 and supporting bench 53 pass through bolt fixed connection, the sample piece includes vertical slip table 32 and the sample clamp 322 that is connected with vertical slip table 32, sample clamp 322 can be the test tube clamp, sample clamp 322 and vertical slip table 32 are connected through connecting plate 321, sample clamp 322 and connecting plate 321 pass through bolted connection, vertical slip table 32 is connected with horizontal slip table 31, horizontal slip table 31 and vertical slip table 32 are sharp slip table, horizontal slip table 31 is less with the interval at cell body 21 edge, for example 20cm, consequently vertical slip table 32 can move to 20cm departments apart from cell body 21 edge, consequently, the operating personnel of being convenient for take the sample.
Referring to fig. 4 and 5, an accommodating cavity 542 is further disposed in the stirring shaft 51, a partition plate 55 for partitioning the accommodating cavity 542 and the adjusting cavity 541 is further disposed on the stirring shaft 51, the partition plate 55 is welded to the stirring shaft 51, the rotary joint 43 is located in the accommodating cavity 542, a connecting hole for allowing the output end of the rotary joint 43 to extend into the adjusting cavity 541 is disposed on the partition plate 55, a rotary seal 564 is sleeved on the rotary joint 43, and the rotary seal 564 is connected to an inner wall of the connecting hole, for example, by gluing. The stirring shaft 51 is further provided with a hole for enabling the electric wires of the horizontal sliding table 31 and the vertical sliding table 32 to penetrate through and deeply enter the accommodating cavity 542, and the electric wires of the horizontal sliding table 31 and the vertical sliding table 32 penetrate through the accommodating cavity 542 and are connected with the external electric wires through the conductive slip ring 41. The conductive slip ring 41 is a hollow shaft slip ring, and a protective room is arranged above the regulating tank 2 and the recovery tank 13, so that the problem that the equipment is easily corroded and damaged due to exposure to the outside can be effectively avoided.
Referring to fig. 5, an auxiliary sealing member is further disposed below the partition plate 55, the auxiliary sealing member includes a sealing plate 561, the sealing plate 561 is connected to the partition plate 55 and forms a sealing cavity with the partition plate 55, a rubber plate 562 is disposed in the sealing cavity, a penetrating hole for allowing the rotary joint 43 to penetrate out is further disposed on the rubber plate 562, a rotary seal 564 is also disposed on an inner wall of the penetrating hole, and the rotary seal 564 is connected to the inner wall of the penetrating hole through glue. Therefore, when the liquid in the rotary joint 43 enters the adjusting cavity 541, the adjusting cavity 541 is filled with the liquid due to the existence of the slurry, and the liquid contacts the rubber plate 562 and presses the rubber plate 562 to be attached to the partition plate 55, thereby achieving a good sealing effect.
Referring to fig. 5, the sealing plate 561 is further provided with a pressure groove 565, the pressure groove 565 is communicated with the sealing cavity, the partition plate 55 is provided with a sealing groove, the rubber plate 562 is provided with a sealing ring 563 fitted with the sealing groove, and a cross interface of the sealing groove is in an isosceles trapezoid shape. The upper end of sealing washer 563 is located the seal groove, and the cross-section of sealing washer 563 is isosceles trapezoid shape, consequently the liquid can get into sealed chamber and oppress rubber slab 562 and baffle 55 and laminate mutually from pressure groove 565, can further strengthen sealed effect.
A concrete wastewater recovery process comprises the following steps:
1) collecting: sending the wastewater into a sand-stone separator 11, separating sand and slurry water, and sending the slurry water into a regulating tank 2;
2) diluting: feeding clear water into the regulating tank 2 and stirring;
3) stirring: stirring the slurry for 2-4 min;
4) sampling: sampling the slurry stirred in the step 2 at multiple points, wherein the number of sampling points is more than four; and dividing each sample into a and B;
5) and (3) concentration detection: detecting all the samples A in the step 3, if the difference between the highest concentration value and the lowest concentration value of the sample A is more than 1g/ml, discarding the sample B, and performing the step 3-5; if the concentration of the sample A is between 0.8g/ml and 1.2g/ml, entering step 6; if the minimum value of the concentration of the sample A is more than 1.2g/ml, discarding the sample B, and carrying out the step 2-5; if the maximum value of the concentration of the sample A is less than 0.8g/ml, discarding the sample B, and performing the step 1 and the steps 3-5;
6) and (3) pH detection: detecting all samples B, if the pH values of the samples B are all larger than 10, entering a step 7, if the pH values of part of the samples B are smaller than 10, adding an alkaline solution into the regulating tank 2, stirring, and performing the steps 3-5;
7) and sending the slurry in the regulating tank 2 into a recovery tank 13 for later use.
The implementation principle of the embodiment is as follows: when carrying the adjusting tank 2 in to thick liquid, to inputing the clear water in the adjusting tank 2, owing to carry out the transport of clear water from (mixing) shaft 51 department, consequently make the dilution effect to the thick liquid in the adjusting tank 2 better, after carrying appropriate amount of clear water, stop carrying the clear water, to carrying the air in the thick liquid, and (mixing) shaft 51 is still rotatory simultaneously, consequently has further strengthened the regulating effect to the thick liquid, makes the thick liquid concentration in the adjusting tank 2 tend to unify. Then sampling is carried out at multiple points, the concentration and the pH value of the slurry are measured, when the concentration and the pH value of the slurry meet the standard, the slurry is conveyed into the recovery tank 13 for standby, and when the concentration and the pH value of the slurry do not meet the standard, the concentration and the pH value of the slurry are regulated and detected again. Therefore, the difference of the concentration of the slurry finally entering the recovery tank 13 is small, the PH value is larger than 10, and therefore when the slurry is reused, the problem that the slurry blocks the conveying device due to uneven concentration can be avoided, meanwhile, the PH value larger than 10 can play a role in providing a weakly alkaline mixing environment, and therefore, the concrete can be mixed to achieve a good effect.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a concrete waste water recovery system, includes sand and stone separator (11), its characterized in that: the slurry water produced by the sand-stone separator (11) is pumped into the regulating tank (2), and the regulated slurry water is pumped into the recovery tank (13);
the adjusting tank (2) comprises a tank body (21), a stirring mechanism and a sampling mechanism; the stirring mechanism comprises a stirring shaft (51) and an adjusting pipe (42), wherein the stirring shaft (51) is provided with an adjusting cavity (541), the stirring shaft (51) is further provided with a plurality of through holes (511), the through holes (511) are communicated with the adjusting cavity (541), and the adjusting pipe (42) is communicated with the adjusting cavity (541) through a rotary joint (43).
2. The concrete waste water recovery system according to claim 1, wherein: the air inlet pipe (423) is further arranged on the rotary joint (43), the air inlet pipe (423) is connected with an air compressor, stirring blades (52) are arranged on the stirring shaft (51), stirring holes (521) are formed in the stirring blades (52), and the stirring holes (521) are communicated with the adjusting cavity (541).
3. The concrete waste water recovery system according to claim 1, wherein: the adjusting pipe (42) comprises a concentration adjusting pipe (421) and a PH adjusting pipe (422), and the concentration adjusting pipe (421) and the PH adjusting pipe (422) are connected with the rotary joint (43).
4. The concrete waste water recovery system according to claim 2, wherein: stirring vane (52) vertical setting and stretch out in the liquid level, sampling mechanism set up in stirring vane (52)'s top, sampling mechanism include brace table (53) that are connected with stirring vane (52), brace table (53) on be equipped with the sample spare.
5. The concrete waste water recovery system according to claim 4, wherein: the supporting table (53) is provided with a horizontal sliding table (31) used for moving a sampling piece, the sampling piece comprises a vertical sliding table (32) and a sampling clamp (322) connected with the vertical sliding table (32), and the vertical sliding table (32) is connected with the horizontal sliding table (31).
6. The concrete waste water recovery system according to claim 1, wherein: stirring shaft (51) in still be equipped with and hold chamber (542), stirring shaft (51) on still be equipped with baffle (55) that are used for separating and hold chamber (542) and regulation chamber (541), rotary joint (43) be located hold chamber (542) in, baffle (55) on be equipped with the output that is used for making rotary joint (43) and stretch into regulation chamber (541) in connecting hole, rotary joint (43) on the cover be equipped with rotary seal (564), rotary seal (564) be connected with the inner wall of connecting hole.
7. The concrete waste water reclamation system as recited in claim 6, wherein: the sealing device is characterized in that an auxiliary sealing piece is further arranged below the partition plate (55), the auxiliary sealing piece comprises a sealing plate (561), the sealing plate (561) is connected with the partition plate (55) and forms a sealing cavity with the partition plate (55), a rubber plate (562) is arranged in the sealing cavity, a penetrating hole for allowing the rotary joint (43) to penetrate out is further formed in the rubber plate (562), and a rotary seal (564) is further arranged on the inner wall of the penetrating hole.
8. The concrete waste water reclamation system as recited in claim 7, wherein: the sealing plate (561) is further provided with a pressure groove (565), the pressure groove (565) is communicated with the sealing cavity, a sealing groove is formed in the partition plate (55), a sealing ring (563) matched with the sealing groove is arranged on the rubber plate (562), and the cross interface of the sealing groove is in an isosceles trapezoid shape.
9. The concrete waste water recovery system according to claim 1, wherein: the stirring mechanism comprises a support frame (12), the support frame (12) is connected with the ground, the support frame (12) is connected with the stirring shaft (51) through a plane bearing, and a motor (14) meshed with the stirring shaft (51) is further arranged on the support frame (12).
10. A concrete wastewater recovery process is characterized in that: the method comprises the following steps:
1) collecting: sending the wastewater into a sand-stone separator (11), separating sand and slurry water, and sending the slurry water into a regulating tank (2);
2) diluting: feeding clear water into the regulating tank (2) and stirring;
3) stirring: stirring the slurry for 2-4 min;
4) sampling: sampling the slurry stirred in the step 2 at multiple points, wherein the number of sampling points is more than four; and dividing each sample into a and B;
5) and (3) concentration detection: detecting all the samples A in the step 3, if the difference between the highest concentration value and the lowest concentration value of the sample A is more than 1g/ml, discarding the sample B, and performing the step 3-5; if the concentration of the sample A is between 0.8g/ml and 1.2g/ml, entering step 6; if the minimum value of the concentration of the sample A is more than 1.2g/ml, discarding the sample B, and carrying out the step 2-5; if the maximum value of the concentration of the sample A is less than 0.8g/ml, discarding the sample B, and performing the step 1 and the steps 3-5;
6) and (3) pH detection: detecting all samples B, if the pH values of the samples B are all larger than 10, entering a step 7, if the pH values of part of the samples B are smaller than 10, adding an alkaline solution into the regulating tank (2), stirring, and performing the step 3-5;
7) and sending the slurry in the regulating tank (2) into a recovery tank (13) for later use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293488.0A CN111039380A (en) | 2019-12-16 | 2019-12-16 | Concrete wastewater recovery system and process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911293488.0A CN111039380A (en) | 2019-12-16 | 2019-12-16 | Concrete wastewater recovery system and process |
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| CN111039380A true CN111039380A (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497024A (en) * | 2020-04-26 | 2020-08-07 | 重庆佳耀商品混凝土有限公司 | Noise reduction structure of concrete mixing tank for concrete transport vehicle |
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