CN117902776A - System and method for recycling wastewater resources of coal-containing bulk yard - Google Patents

Abstract

The invention relates to a wastewater resource recycling system and method for a coal-containing bulk yard, and relates to the technical field of coal-containing wastewater treatment. Coal-containing wastewater enters a sedimentation tank for sedimentation after coal blocks and wastewater are separated through a wastewater collecting device, coal slime is precipitated and accumulated at the bottom of the sedimentation tank, supernatant enters a treatment tank for treatment, treated water enters a recovery tank for recycling, and wastewater is collected through the wastewater collecting device and then is precipitated and treated, so that the treatment time of the coal-containing wastewater is saved, and the treatment efficiency of the coal-containing wastewater in a railway coal-containing bulk yard is improved.

Description

System and method for recycling wastewater resources of coal-containing bulk yard

Technical Field

The invention relates to the technical field of coal-containing wastewater treatment, in particular to a system and a method for recycling wastewater resources of a coal-containing bulk yard.

Background

The railway freight yard refers to a place for handling freight carrying, loading, unloading, storing and delivering operations in a railway station, and is a place where a railway is connected with other transportation modes, and the transported freight comprises but is not limited to coal, ore, sand and other bulk cargoes.

Railway coal-containing bulk cargo yards can cause a large amount of dust during unloading, loading and other small-granularity cargoes, and seriously pollute the surrounding air environment. For dust containing coal, measures such as dust suppression wall and dust fall spraying can be adopted at present, but the dust suppression wall is difficult to remove dust in the working environment in a goods yard, a large amount of water resources are consumed in dust fall spraying, a large amount of coal containing wastewater can be generated in dust fall spraying and rainy season, the turbidity is high, the solid particle size is fine, the treatment is difficult, and if the water is not discharged up to standard, water body pollution and coal slime loss can be caused, environmental pollution is caused, and a large amount of water resources are wasted.

Generally, drainage ditches are formed around a cargo yard, coal-containing wastewater enters subsequent treatment equipment through the drainage ditches, common treatment mode is to treat the wastewater by manually adding medicines through coagulating sedimentation, but the drainage ditches are open air, and on-site coal is easily taken into the drainage ditches by the wastewater, so that the treatment capacity of manually separating coal from wastewater is increased, and the treatment efficiency of coal-containing wastewater in a railway coal-containing bulk cargo yard is reduced.

Disclosure of Invention

The invention provides a system and a method for recycling wastewater resources of a coal-containing bulk yard in order to improve treatment efficiency of coal-containing wastewater of the railway coal-containing bulk yard.

The application provides a system and a method for recycling wastewater resources of a coal-containing bulk yard, which adopts the following technical scheme:

The utility model provides a contain coal bulk cargo yard waste water resource cyclic utilization system, includes waste water collection device, sedimentation tank, treatment tank and the recovery tank that sets gradually, waste water collection device is used for collecting and contains coal waste water, the sedimentation tank is connected with waste water collection device and is used for depositing waste water, the treatment tank is connected with the sedimentation tank and is used for handling the supernatant, the recovery tank is connected with the treatment tank and is used for carrying out cyclic utilization to water.

Through adopting above-mentioned technical scheme, waste water collection device separates coal cinder and waste water, and the waste water that contains coal deposit in entering sedimentation tank behind the waste water collection device deposit and pile up in the sedimentation tank bottom, and the supernatant gets into in the treatment tank and handles, and the water sample after the processing gets into in the recovery tank and carries out recycle, carries out sediment and treatment again after collecting waste water through waste water collection device to the treatment time of containing coal waste water has been practiced thrift, with this treatment effeciency who improves the containing coal waste water of railway bulk cargo yard that contains coal.

Optionally, the wastewater collection device includes:

the drainage ditch is arranged around the goods yard and is used for collecting coal-containing wastewater and conveying the coal-containing wastewater to the sedimentation tank;

The first separation box is arranged at the top of the drainage ditch, the side wall of the first separation box is of a double-layer hollowed-out framework structure, and a first blocking piece for blocking coal blocks is arranged on the inner layer, close to the drainage ditch, of the first separation box;

The second separation case, the second separation case sets up in the escape canal, the lateral wall of second separation case is bilayer structure, the second separation case skin is the fretwork skeleton, the second separation incasement layer is the fretwork skeleton and is equipped with the second and stops the piece along escape canal length direction's front and back both sides, second separation case inlayer left and right sides and bottom are the imperforate board.

Through adopting above-mentioned technical scheme, spray water and rainwater mixed cinder of scene dust fall back and parallel flow escape canal, the coal cinder that the particle diameter is greater than first separator tank and second separator tank skeleton aperture is blocked outside, the coal-containing waste water is through the back entering first separator tank of first separator tank double-deck skeleton structure, first barrier piece blocks the coal cinder, waste water flows out first separator tank and is imported into the escape canal after passing through first barrier piece, the coal-containing waste water that is imported into the escape canal gets into the second separator tank, the coal cinder is blocked in the second separator tank by the second barrier piece, and the waste water is blocked the coal cinder at escape canal top through first separator tank and is imported into the sedimentation tank, the second separator tank is blockked the coal cinder that is imported into the escape canal, thereby realize coal cinder and waste water separation, need not artifical with coal separation, improve coal cinder and waste water separation's convenience, thereby practiced thrift the treatment time that contains coal, consequently, the treatment efficiency of coal-containing waste water that contains bulk storage yard is improved.

Optionally, the top of first separator box and second separator box all is the open state and covers and be equipped with the apron, the apron is double-deck fretwork skeleton and lower surface and is equipped with the stopper, the stopper inserts and establishes on the top of first separator box or second separator box inlayer and be used for spacing the apron.

Through adopting above-mentioned technical scheme, the apron blocks the coal cinder that the particle diameter is greater than the skeleton aperture to reduce the probability that the coal cinder mixes waste water, with this convenience that improves coal cinder and waste water separation, after first separator tank and second separator tank's coal cinder is filled up, stir the apron and drive the stopper and break away from first separator tank or second separator tank inlayer, then can pull down the apron and collect the coal cinder in the box, thereby improved the availability factor of first separator tank and second separator tank, and with this treatment time who practices thrift the coal-containing waste water, improvement treatment effeciency.

Optionally, a clean water tank is arranged between the sedimentation tank and the treatment tank, a decanter is arranged on the outer wall, close to the clean water tank, of the sedimentation tank, a conveying component for conveying the supernatant to the treatment tank is arranged on the clean water tank, and a treatment component for treating the supernatant is arranged in the treatment tank.

Through adopting above-mentioned technical scheme, the coal-containing waste water deposits in the sedimentation tank, and the slime deposits and piles up in the sedimentation tank bottom, and the supernatant passes through the clear water pond of entering behind the decanter and keeps in, and conveying assembly starts to carry the supernatant to the treatment tank, and the treatment assembly starts to handle the supernatant, and the clear water after the processing gets into in the recovery tank and reserve to this deposits and handles the coal-containing waste water, reduces the direct discharge probability of coal-containing waste water, thereby reaches the effect of saving water resources.

Optionally, the conveying assembly includes:

the lifting pump is arranged on the clean water tank, and the suction end of the lifting pump extends into the clean water tank;

the water delivery pipe is arranged at the outlet end of the lifting pump and extends into the treatment pool.

Through adopting above-mentioned technical scheme, the elevator pump starts, and in the water sample in the clean water basin got into the processing tank after hanging through the water delivery, processing unit handles the water sample to this transport of realization supernatant.

Optionally, the processing component includes:

the siliconizing film is arranged in the treatment tank and is used for filtering the supernatant, and one end of the water delivery pipe, which is far away from the lifting pump, is positioned above the siliconizing film;

the ultraviolet sterilizer is arranged in the treatment tank and is used for sterilizing the filtered water.

Through adopting above-mentioned technical scheme, the supernatant is filtered through the siliconizing membrane after passing through the raceway to this purifies the supernatant, and the water after the purification is disinfected through ultraviolet ray sterilizer and is reserve, with this handles the supernatant, need not extra medicine, thereby reduces the manual operation degree of difficulty, with this convenience that has improved coal-containing waste water treatment, has consequently improved the treatment effeciency of railway coal-containing bulk cargo yard coal-containing waste water.

Optionally, the recovery tank is used for keeping in the water after disinfecting, be provided with the circulation subassembly that is used for carrying out cyclic utilization to water on the recovery tank.

By adopting the technical scheme, the sterilized water enters the recovery tank for temporary storage, and the circulating assembly starts to recycle the recovered water, so that the probability of directly discharging the coal-containing wastewater is reduced, and the effect of saving water resources is achieved.

Optionally, the circulation assembly includes:

the dust fall pump is arranged on the recovery tank, and the suction end of the dust fall pump extends into the recovery tank;

The dust settling water pipe is arranged at the water outlet end of the dust settling pump and extends to the upper part of the goods yard, and a dust settling spray gun is arranged at one end, far away from the dust settling pump, of the dust settling water pipe.

Through adopting above-mentioned technical scheme, when the goods yard produced the raise dust, the dust fall pump starts to suck the reclaimed water, and reclaimed water gets into in the dust fall spray gun and spouts from the dust fall spray gun after passing through the dust fall water pipe to this sprays the raise dust, and the dust fall water carries out next round circulation processing in getting into the sedimentation tank after passing through first separator tank, escape canal, second separator tank, with this carries out cyclic utilization to the coal-containing waste water, reduces the water wasting.

Optionally, the system further comprises a coal slime recovery assembly, the coal slime recovery assembly comprises:

the travelling mud scraper is arranged in the sedimentation tank and is used for scraping coal mud;

the sludge discharge pump is arranged on the sedimentation tank, and the suction end of the sludge discharge pump extends into the sedimentation tank and is positioned below the decanter;

the mud storage tank is connected with the mud pump through a mud discharge pipe and is used for temporarily storing coal mud, and a stirring piece for stirring the coal mud is arranged in the mud storage tank;

the slurry pump is characterized in that a slurry pump suction end is communicated with the slurry storage tank, and the slurry pump outlet end is connected with a filter press for carrying out filter pressing on coal slurry.

Through adopting above-mentioned technical scheme, traveling sludge scraper strikes off piled up coal slime in the sedimentation tank, the dredge pump starts to suck the coal slime, the coal slime is passed through behind the dredge pipe and is got into in the mud storage tank and keep in, stirring piece starts and reduces the probability that the coal slime is adhered at the mud storage tank inner wall, the sediment stuff pump starts to suck the coal slime, the coal slime in the mud storage tank gets into the pressure filter under the effect of sediment stuff pump, the pressure filter carries out the filter-pressing to the coal slime, thereby retrieve the coal slime, the coal slime after retrieving can reentrant goods yard utilization, except reducing outside the outer freight of mud and secondary treatment expense, still reducible ordinary nature desiccation pond place occupies, with this cost is practiced thrift, the convenience of coal slime handling has been improved simultaneously.

A recycling method of wastewater resources of a coal-containing bulk yard comprises the following steps:

The method comprises the steps that a dust falling pump and a dust falling spray gun are started to spray water to fall dust to raise dust, coal-containing wastewater is collected into a drainage ditch, a first separation box is used for blocking coal blocks, small-particle-size coal blocks and wastewater enter the first separation box, the wastewater is collected into the drainage ditch through a first blocking piece and enters a second separation box, the second blocking piece is used for blocking the coal blocks, the wastewater is collected into a sedimentation tank after passing through a second blocking piece, and after the coal blocks in the first separation box and the second separation box are filled, a cover plate is opened to pour out inner-layer coal blocks for recycling;

Secondly, the coal-containing wastewater is precipitated in a sedimentation tank, supernatant enters a clean water tank through a decanter, precipitated sludge enters a sludge storage tank through a sludge discharge pump and enters a filter press through a slurry pump for filter pressing and dehydration, and filter cakes after filter pressing can enter a goods yard again for recycling;

and thirdly, clean water in the clean water tank enters the treatment tank through the lifting pump, the clean water sequentially passes through the siliconizing film and the ultraviolet sterilizer and then enters the recovery tank for standby, and the water in the recovery tank enters the dust fall spray gun through the dust fall pump for recycling.

By adopting the technical scheme, the dust falling spray gun is started to spray dust generated by a goods yard, spray water and rainwater falling in a rainy season flow along the ground of the goods yard, coal blocks with particle sizes smaller than that of the first separation tank and the second separation tank frameworks are blocked outside, the coal blocks with particle sizes smaller than that of the first separation tank and the second separation tank frameworks are mixed with wastewater to enter the first separation tank and the second separation tank, the first blocking piece and the second blocking piece block the coal blocks, and the wastewater is collected into a sedimentation tank to be precipitated after passing through the first separation tank and the second separation tank, and the coal blocks can be taken out and recycled by opening the cover plate; the supernatant fluid after precipitation passes through a clear water tank after passing through a decanter and is treated by a siliconizing film and an ultraviolet sterilizer, the treated water enters a recovery tank for recycling, and the slime is pumped and is reused after being filtered by a filter press, so that the whole process of recycling the wastewater containing coal is realized, the probability of directly discharging the wastewater containing coal is reduced, and water resources are saved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The wastewater collection device separates coal briquettes and wastewater, the coal-containing wastewater enters the sedimentation tank to be precipitated after passing through the wastewater collection device, coal slime is precipitated and accumulated at the bottom of the sedimentation tank, supernatant enters the treatment tank to be treated, a treated water sample enters the recovery tank to be recycled, and the wastewater is collected by the wastewater collection device and then is precipitated and treated, so that the treatment time of the coal-containing wastewater is saved, and the treatment efficiency of the coal-containing wastewater in a railway coal-containing bulk yard is improved.

2. The coal briquette that the particle diameter is greater than first separator tank and second separator tank skeleton aperture is blocked outside, the coal-containing waste water passes through first separator tank bilayer skeleton structure back and goes into first separator tank, first barrier is blockked the coal briquette, waste water flows out first separator tank and is converged into the escape canal after passing through first barrier, the coal-containing waste water that is converged into the escape canal gets into the second separator tank, the coal briquette is blockked at the second separator tank by the second barrier, and waste water flows out the second separator tank and is converged into the sedimentation tank to deposit after passing through the second barrier, block the coal briquette at escape canal top through first separator tank, the second separator tank blocks the coal briquette that is converged into the escape canal, thereby realize the separation of coal briquette and waste water, need not the manual work and separate coal and waste water, improve the convenience of coal briquette and waste water separation, thereby saving the treatment time of coal-containing waste water, consequently, the treatment efficiency of coal-containing waste water in the railway coal-containing bulk yard has been improved.

3. The wastewater enters a recovery tank for standby after being collected, precipitated, siliconized membrane filtered and ultraviolet sterilized, so that the recycling of the wastewater containing coal is realized, and the waste of water resources is reduced.

4. The coal slime is recovered after being filtered by a filter press after being pumped, and the recovered coal slime can be re-entered into a goods yard for use, so that not only the transport cost and the secondary treatment cost of the sludge are reduced, but also the occupied area of a common natural drying pool can be reduced, thereby saving the cost and improving the convenience of coal slime treatment.

Drawings

FIG. 1 is a schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of the structure of the wastewater treatment apparatus of the present application;

FIG. 3 is an exploded view of a first separator tank and a second separator tank according to the present application;

FIG. 4 is an exploded view of the cover and stopper of the present application positioned on the second separator tank;

FIG. 5 is a schematic view of the construction of the coal slurry recovery assembly of the present application;

FIG. 6 is a schematic view of the construction of the treatment assembly of the present application, wherein the treatment basin is shown in cross-section;

fig. 7 is a schematic view of the structure of the dust settling water pipe and the dust settling spray gun in the application.

Reference numerals: 1. a waste water collection device; 11. a drainage ditch; 12. a first separator tank; 121. a first blocking member; 13. a second separation tank; 131. a second blocking member; 14. a cover plate; 141. a limiting block; 15. a plug block; 151. an interface; 2. a sedimentation tank; 21. a partition plate; 22. a first sedimentation chamber; 23. a second sedimentation chamber; 24. a decanter; 3. a treatment pool; 31. a processing assembly; 311. a siliconizing film; 312. an ultraviolet sterilizer; 32. a water inlet pipe; 33. a liquid outlet pipe; 34. a delivery tube; 4. a recovery pool; 41. a circulation assembly; 411. a dust fall pump; 412. a dust fall water pipe; 42. a dust fall spray gun; 5. a clean water tank; 51. a transport assembly; 511. a lift pump; 512. a water pipe; 6. a coal slime recovery assembly; 61. travelling crane type mud scraper; 62. a mud pump; 63. a mud storage tank; 631. a mud pipe; 64. a slurry pump; 65. and (3) a filter press.

Detailed Description

The application is described in further detail below with reference to fig. 1-7.

The embodiment of the application discloses a system and a method for recycling wastewater resources of a coal-containing bulk yard.

Referring to fig. 1, a wastewater resource recycling system of a coal-containing bulk yard comprises a wastewater collection device 1, a sedimentation tank 2, a treatment tank 3 and a recovery tank 4 which are sequentially arranged, wherein the wastewater collection device 1 is arranged around the yard and is used for collecting coal-containing wastewater, the sedimentation tank 2 is connected with the wastewater collection device 1 and is used for precipitating wastewater, the treatment tank 3 is connected with the sedimentation tank 2 and is used for treating supernatant, and the recovery tank 4 is connected with the treatment tank 3 and is used for recycling water.

Referring to fig. 1 and 2, the wastewater collection apparatus 1 includes a drain 11, a first separation tank 12 and a second separation tank 13, the drain 11 being opened around a yard and being used for collecting wastewater containing coal and transporting the wastewater containing coal to the sedimentation tank 2.

Referring to fig. 2 and 3, the first separation tank 12 is provided with a plurality of first separation tanks 12, the plurality of first separation tanks 12 are sequentially placed around a cargo yard and are located at the top of the drainage ditch 11, the side wall of each first separation tank 12 is of a double-layer hollow skeleton structure, the bottom of each first separation tank 12 is of a double-layer porous plate, the inner layer of each first separation tank 12 is placed in the outer layer and can be independently taken out, the inner layer of each first separation tank 12, which is close to the drainage ditch 11, is provided with a first blocking piece 121 for blocking coal, the first blocking piece 121 is geotextile with two cloth and one film, the geotextile is fixed on the inner layer skeleton of each first separation tank 12, which is close to the drainage ditch 11, and the fixing mode can be binding or adopting a connecting mode such as clamping or bolt and nut.

Referring to fig. 2 and 3, the second separation tank 13 is provided with a plurality of second separation tanks 13, the plurality of second separation tanks 13 are sequentially placed in the drainage ditch 11, the side wall of the second separation tank 13 is of a double-layer hollow skeleton structure, the bottom of the second separation tank 13 is of a double-layer non-porous plate, the left side and the right side of the inner layer of the second separation tank 13 are non-porous plates, the inner layer of the second separation tank 13 is placed in the outer layer and can be taken out independently, the front side and the rear side of the inner layer of the second separation tank 13 along the length direction of the drainage ditch 11 are hollow skeletons, the second blocking pieces 131 are geotextiles with two-in-one film, the geotextile is fixed on the skeletons of the front side and the rear side of the inner layer of the second separation tank 13 along the length direction of the drainage ditch 11, and the fixing mode can be binding or adopting a clamp clamping mode or a bolt-nut connecting mode and the like, and the application is not limited.

Referring to fig. 3 and 4, the top ends of the first separation box 12 and the second separation box 13 are in an opening state and are covered with a cover plate 14, the cover plate 14 is a double-layer hollow framework, limit blocks 141 are fixedly installed at four corners of the lower surface, plug blocks 15 are arranged at four corners of the top ends of the inner layers of the first separation box 12 and the second separation box 13, vertical plug ports 151 are formed in the upper surface of the plug blocks 15, the plug ports 151 are in one-to-one correspondence with the limit blocks 141 and are used for limiting the cover plate 14, and when the cover plate 14 is in a covering state, the limit blocks 141 are inserted into the plug ports 151; in other embodiments, the cover plate 14 may also be rotatably mounted on the first separator tank 12 or the second separator tank 13.

The pores of the outer hollow frameworks of the first separation box 12 and the second separation box 13 are 100m, and the pores of the inner hollow frameworks are 40mm.

Referring to fig. 1 and 3, spray water and rainwater for on-site dust fall mix cinder and then flow to the drain 11, coal pieces with particle diameters greater than 40mm are blocked outside, suspended particles containing coal and part of kerosene with particle diameters smaller than 40mm are blocked on geotechnical cloth, waste water flows out of the first separation tank 12 and is converged into the drain 11 after passing through the first blocking piece 121, waste water containing coal and entering the drain 11 enters the second separation tank 13, suspended particles containing coal and part of kerosene with particle diameters smaller than 40mm are blocked on geotechnical cloth, and waste water flows out of the second separation tank 13 and is converged into the sedimentation tank 2 for sedimentation after passing through the second blocking piece 131.

Referring to fig. 3 and 4, the first separation tank 12 is used for blocking the coal blocks at the top of the drainage ditch 11, the second separation tank 13 is used for blocking the coal blocks which are gathered in the drainage ditch 11, so that separation of the coal blocks and wastewater is realized, coal and wastewater are not needed to be separated manually, the cover plate 14 is opened after the coal blocks are stacked more to take out the coal blocks in the inner layer for collection and recycling, convenience in separation of the coal blocks and the wastewater is improved, treatment time of the wastewater containing coal is saved, and treatment efficiency of the wastewater containing coal in a railway coal-containing bulk yard is improved.

Referring to fig. 1 and 5, a vertical partition plate 21 is detachably inserted on the inner bottom wall of the sedimentation tank 2, the partition plate 21 divides the sedimentation tank 2 into a first sedimentation cavity 22 and a second sedimentation cavity 23, the drainage ditch 11 is communicated with the inside of the first sedimentation cavity 22, the top ends of the first sedimentation cavity 22 and the second sedimentation cavity 23 are communicated, a clean water tank 5 is arranged between the sedimentation tank 2 and the treatment tank 3, the second sedimentation cavity 23 is positioned between the first sedimentation cavity 22 and the clean water tank 5, a decanter 24 is arranged on the outer wall, close to the clean water tank 5, of the second sedimentation cavity 23, the decanter 24 adopts a float type decanter, an electric valve (not shown in the figure) is arranged on the outlet pipe of the decanter 24, and the structure and the working principle of the decanter 24 are consistent with those of the float type decanter 24 in the prior art, and the application is not repeated.

Referring to fig. 1 and 5, a transfer assembly 51 for transferring the supernatant to the treatment tank 3 is provided on the clean water tank 5, the transfer assembly 51 includes a lift pump 511 and a water pipe 512, the lift pump 511 is fixedly installed at the top end of the clean water tank 5 and the suction end extends into the clean water tank 5, and the water pipe 512 is installed at the outlet end of the lift pump 511 and extends into the treatment tank 3.

Referring to fig. 1 and 6, a treatment assembly 31 for treating the supernatant is disposed in the treatment tank 3, the treatment assembly 31 includes a siliconizing film 311 and an ultraviolet sterilizer 312, the siliconizing film 311 is a roll siliconizing filter film, the siliconizing film 311 is provided with a plurality of rolls, the plurality of rolls of siliconizing film 311 are vertically installed in parallel in the treatment tank 3, one end of the water pipe 512 far from the lifting pump 511 is located above the uppermost siliconizing film 311, the water inlet end of the plurality of rolls of siliconizing film 311 is communicated with the water pipe 32, the top end of the water inlet pipe 32 is communicated with the water pipe 512, and the water outlet end of the plurality of rolls of siliconizing film 311 is communicated with the liquid outlet pipe 33.

Referring to fig. 6, an ultraviolet sterilizer 312 is installed in the treatment tank 3, a water inlet of the ultraviolet sterilizer 312 is communicated with a liquid outlet pipe 33, a delivery pipe 34 is installed on a water outlet of the ultraviolet sterilizer 312, and the delivery pipe 34 extends into the recovery tank 4.

Referring to fig. 1 and 6, the recovery tank 4 is used for temporarily storing the sterilized water, the recovery tank 4 is provided with a circulating assembly 41 for recycling the water, the circulating assembly 41 comprises a dust falling pump 411 and a dust falling water pipe 412, the dust falling pump 411 is installed on the outer wall of the recovery tank 4, the suction end of the dust falling pump extends into the recovery tank 4, and the dust falling water pipe 412 is installed on the water outlet end of the dust falling pump 411 and extends to the upper portion of a cargo yard.

Referring to fig. 1, 6 and 7, one end of the dust fall pipe 412, which is remote from the dust fall pump 411, is wound over the yard, and a plurality of dust fall spray guns 42 are sequentially installed at a portion of the dust fall pipe 412 located over the yard, with the spray outlets of the dust fall spray guns 42 facing into the yard.

In practical application, a dust detection device can be arranged in the dust fall spray gun 42, and the dust detection device adopts a visible light scattering dust meter in the prior art, and irradiates a dust-containing airflow with a light beam to generate scattered light, so that the higher the dust concentration is, the higher the produced scattered light intensity is, and the dust concentration is measured; and a rotatable positioning spray gun can be adopted according to the requirement, when the PM2.5 concentration of the particles is monitored to be more than 75 micrograms per cubic meter, the dust falling pump 411 and the spray gun are started, and water spraying and dust falling are automatically positioned according to the dust concentration direction.

Referring to fig. 1 and 5, the system for recycling waste water resources of a coal-containing bulk yard further comprises a coal slime recycling assembly 6, wherein the coal slime recycling assembly 6 comprises two driving type mud scrapers 61, a mud discharging pump 62, a mud storage tank 63 and a slurry pump 64, the driving type mud scrapers 61 are arranged on the first sedimentation cavity 22 and the second sedimentation cavity 23 respectively, taking the first sedimentation cavity 22 as an example, a travelling part of the driving type mud scrapers 61 is located above the first sedimentation cavity 22, and a scraping plate part is located in the first sedimentation cavity 22 and is used for scraping coal slime.

Referring to fig. 1 and 6, two sludge pumps 62 are provided and correspond to the first settling chamber 22 and the second settling chamber 23, respectively, and the second settling chamber 23 is taken as an example, and a suction end of the sludge pump 62 extends to the bottom inside the second settling chamber 23 and is located below the decanter 24.

Referring to fig. 1 and 6, the inlet end of the sludge storage tank 63 is connected to the discharge ports of the two sludge pumps 62 through two sludge discharge pipes 631, the sludge storage tank 63 is used for temporarily storing coal sludge, and a stirring member for stirring the coal sludge is disposed in the sludge storage tank 63, in this embodiment, the sludge storage tank 63 is a horizontal spiral conveying stirring tank, in other embodiments, the sludge storage tank 63 may be a vertical storage tank, and the stirring member may be any accessory with a stirring function in the prior art, which is not limited by the present application.

Referring to fig. 1 and 6, a suction end of the slurry pump 64 communicates with an outlet end of the slurry storage tank 63, and a filter press 65 for press-filtering the coal slurry is connected to the outlet end of the slurry pump 64.

The construction and operation principles of the geotechnical cloth, decanter 24, lift pump 511, roll siliconizing film 311, ultraviolet sterilizer 312, dust settling pump 411, dust settling spray gun 42, traveling sludge scraper 61, sludge pump 62, sludge storage tank 63, slurry pump 64, and filter press 65, etc. used in the present application are all known to those skilled in the art, and therefore the present application does not provide any additional explanation for the construction and principle of the corresponding equipment.

Referring to fig. 1-7, a method for recycling wastewater resources of a coal-containing bulk yard comprises the following steps:

The first step, a dust falling pump 411 and a dust falling spray gun 42 are started to spray water to fall dust to raise dust, coal-containing wastewater is converged into a drainage ditch 11, a first separation box 12 is used for blocking coal blocks with the particle size of more than 40mm, coal blocks with the particle size of less than 40mm and wastewater enter the first separation box 12, the wastewater is converged into the drainage ditch 11 through a first blocking piece 121 and enters a second separation box 13, and the coal blocks remain in the first separation box 12; the waste water entering the mixing part through the first separation tank 12 enters the second separation tank 13, the second blocking piece 131 blocks coal blocks, the waste water passes through the second blocking piece 131 and then is gathered into the sedimentation tank 2, the coal blocks remain in the second separation tank 13, after the coal blocks in the first separation tank 12 and the second separation tank 13 are filled, the cover plate 14 is opened to pour out the inner-layer coal blocks for recycling.

And secondly, the coal-containing wastewater is precipitated in the sedimentation tank 2, supernatant fluid enters the clean water tank 5 through the decanter 24, precipitated sludge enters the sludge storage tank 63 through the sludge discharge pump 62 and enters the filter press 65 through the slurry pump 64 for press filtration and dehydration, and a filter cake after press filtration can enter a cargo yard again for recycling.

Third, clean water in the clean water tank 5 enters the treatment tank 3 through the lift pump 511, and the clean water sequentially enters the recovery tank 4 for standby after passing through the siliconizing film 311 and the ultraviolet sterilizer 312, and water in the recovery tank 4 enters the dust fall spray gun 42 through the dust fall pump 411 for recycling.

The wastewater enters the recovery tank 4 for standby after being collected, precipitated, siliconized membrane filtered and ultraviolet sterilized, so that the recycling of the wastewater containing coal is realized, and the waste of water resources is reduced; and the coal slime is recovered after being filtered and pressed by the filter press 65 after being pumped, and the recovered coal slime can be re-entered into a cargo yard for use, so that not only the transport cost and the secondary treatment cost except for the sludge are reduced, but also the occupied area of a common natural drying pool can be reduced, thereby saving the cost and improving the convenience of coal slime treatment.

The working principle of the embodiment of the application is as follows:

Spray water and rainwater for on-site dust fall mix coal slag and then flow to the drainage ditch 11, coal blocks with the particle size larger than 40mm are blocked outside, coal-containing suspended particles with the particle size smaller than 40mm and part of kerosene are blocked on geotechnical cloth, waste water flows out of the first separation tank 12 and is converged into the drainage ditch 11 after passing through the first blocking piece 121, coal-containing waste water converged into the drainage ditch 11 enters the second separation tank 13, coal-containing suspended particles with the particle size smaller than 40mm and part of kerosene are blocked on geotechnical cloth, and waste water flows out of the second separation tank 13 and is converged into the sedimentation tank 2 for sedimentation after passing through the second blocking piece 131.

The wastewater enters the recovery tank 4 for standby after being collected, precipitated, siliconized membrane filtered and ultraviolet sterilized, so that the recycling of the wastewater containing coal is realized, and the waste of water resources is reduced; and the coal slime is recovered after being filtered and pressed by the filter press 65 after being pumped, and the recovered coal slime can be re-entered into a cargo yard for use, so that not only the transport cost and the secondary treatment cost except for the sludge are reduced, but also the occupied area of a common natural drying pool can be reduced, thereby saving the cost and improving the convenience of coal slime treatment.

The coal blocks at the top of the drainage ditch 11 are blocked by the first separation box 12, the coal blocks which are gathered into the drainage ditch 11 are blocked by the second separation box 13, so that the separation of the coal blocks and waste water is realized, the coal and waste water are not needed to be separated manually, the cover plate 14 is opened after the coal blocks are piled up more to take out the coal blocks in the inner layer for collection and recycling, the convenience of separating the coal blocks from the waste water is improved, the treatment time of the waste water containing coal is saved, and the treatment efficiency of the waste water containing coal in a railway bulk yard containing coal is improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A contain coal bulk cargo yard waste water resource cyclic utilization system which characterized in that: including waste water collection device (1), sedimentation tank (2), treatment tank (3) and recovery tank (4) that set gradually, waste water collection device (1) is used for collecting coal-containing waste water, sedimentation tank (2) are connected with waste water collection device (1) and are used for carrying out the sediment to waste water, treatment tank (3) are connected with sedimentation tank (2) and are used for handling the supernatant, recovery tank (4) are connected with treatment tank (3) and are used for carrying out cyclic utilization to water.

2. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 1, wherein: the wastewater collection device (1) comprises:

The drainage ditch (11) is arranged around the goods yard and is used for collecting coal-containing wastewater and conveying the coal-containing wastewater to the sedimentation tank (2);

the first separation box (12), the first separation box (12) is arranged at the top of the drainage ditch (11), the side wall of the first separation box (12) is of a double-layer hollow skeleton structure, and a first blocking piece (121) for blocking coal blocks is arranged on the inner layer of the first separation box (12) close to the drainage ditch (11);

The second separation case (13), second separation case (13) set up in escape canal (11), the lateral wall of second separation case (13) is bilayer structure, second separation case (13) skin is the fretwork skeleton, both sides are the fretwork skeleton and are equipped with second barrier (131) around escape canal (11) length direction along second separation case (13) inlayer, second separation case (13) inlayer left and right sides and bottom are the imperforate board.

3. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 2, wherein: the top of first separation case (12) and second separation case (13) all are the open state and cover and are equipped with apron (14), apron (14) are double-deck fretwork skeleton and lower surface and are equipped with stopper (141), stopper (141) are inserted and are established on the top of first separation case (12) or second separation case (13) inlayer and are used for spacing apron (14).

4. A coal-containing bulk yard wastewater resource recycling system according to claim 3, wherein: a clean water tank (5) is arranged between the sedimentation tank (2) and the treatment tank (3), a decanter (24) is arranged on the outer wall, close to the clean water tank (5), of the sedimentation tank (2), a conveying component (51) for conveying supernatant to the treatment tank (3) is arranged on the clean water tank (5), and a treatment component (31) for treating the supernatant is arranged in the treatment tank (3).

5. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 4, wherein: the transport assembly (51) comprises:

The lifting pump (511) is arranged on the clean water tank (5) and the suction end of the lifting pump (511) extends into the clean water tank (5);

the water delivery pipe (512) is arranged at the outlet end of the lifting pump (511) and extends into the treatment tank (3).

6. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 5, wherein: the processing assembly (31) comprises:

the siliconizing film (311) is arranged in the treatment tank (3) and is used for filtering the supernatant, and one end of the water delivery pipe (512) far away from the lifting pump (511) is positioned above the siliconizing film (311);

an ultraviolet sterilizer (312), the ultraviolet sterilizer (312) being disposed in the treatment tank (3) and used for sterilizing the filtered water.

7. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 6, wherein: the recycling tank (4) is used for temporarily storing the sterilized water, and a circulating assembly (41) for recycling the water is arranged on the recycling tank (4).

8. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 7, wherein: the circulation assembly (41) comprises:

the dust fall pump (411), the dust fall pump (411) is arranged on the recovery tank (4) and the suction end extends into the recovery tank (4);

The dust settling water pipe (412), dust settling water pipe (412) set up on the play water end of dust settling pump (411) and stretch to goods yard top, dust settling water pipe (412) keep away from the one end of dust settling pump (411) and are equipped with dust settling spray gun (42).

9. The recycling system for wastewater resources of a coal-containing bulk yard according to claim 7, wherein: the device further comprises a coal slime recovery assembly (6), wherein the coal slime recovery assembly (6) comprises:

the travelling mud scraper (61), the travelling mud scraper (61) is arranged in the sedimentation tank (2) and is used for scraping coal mud;

the sludge discharge pump (62) is arranged on the sedimentation tank (2), and the suction end of the sludge discharge pump (62) extends into the sedimentation tank (2) and is positioned below the decanter (24);

The mud storage tank (63), the mud storage tank (63) is connected with a mud pump (62) through a mud discharge pipe (631) and is used for temporarily storing coal mud, and a stirring piece for stirring the coal mud is arranged in the mud storage tank (63);

the slurry pump (64), slurry pump (64) suction end and mud storage jar (63) intercommunication, slurry pump (64) exit end is connected with pressure filter (65) that are used for carrying out the filter-pressing to the coal slime.

10. The recycling method for wastewater resources of a coal-containing bulk yard according to claim 9, wherein the recycling method comprises the following steps: the method comprises the following steps:

the method comprises the steps that a dust falling pump (411) and a dust falling spray gun (42) are started to spray water to fall dust, coal-containing wastewater is collected into a drainage ditch (11), a first separation box (12) is used for blocking coal blocks, small-particle-size coal blocks and wastewater enter the first separation box (12), the wastewater is collected into the drainage ditch (11) through a first blocking piece (121) and enters a second separation box (13), a second blocking piece (131) is used for blocking the coal blocks, the wastewater is collected into a sedimentation tank (2) after passing through the second blocking piece (131), and after the coal blocks in the first separation box (12) and the second separation box (13) are filled, a cover plate (14) is opened to pour out inner-layer coal blocks for recycling;

Secondly, the coal-containing wastewater is precipitated in a sedimentation tank (2), supernatant enters a clean water tank (5) through a decanter (24), precipitated sludge enters a sludge storage tank (63) through a sludge discharge pump (62) and enters a filter press (65) through a slurry pump (64) for filter pressing and dehydration, and filter cakes after filter pressing can enter a goods yard again for recycling;

Third, clean water in the clean water tank (5) enters the treatment tank (3) through the lifting pump (511), and the clean water sequentially enters the recovery tank (4) for standby after passing through the siliconizing film (311) and the ultraviolet sterilizer (312), and water in the recovery tank (4) enters the dust falling spray gun (42) through the dust falling pump (411) for recycling.