Efficient precipitation device for industrial production wastewater

Abstract

The utility model discloses a high-efficiency precipitation device for industrial production wastewater, which is used for solving the problems of low intensification degree and low production efficiency in the treatment of industrial wastewater generated in the existing building material production. The self-settling and trash holding pool is sequentially divided into a vortex area, an accelerated sinking area and a gathering area from top to bottom, a water return pipe is arranged in the center, the upper end of the water return pipe is connected with a pump, the lower end of the water return pipe is inserted into the junction of the accelerated sinking area and the gathering area, and part of waste water is lifted along the pump from the lower end of the water return pipe and discharged to a water outlet area. The water outlet area is located in the peripheral area of the vortex area and communicated with the vortex area, and the drainage area is connected with a self-settling area pool of the follow-up process. According to the design, the intensification degree in wastewater treatment is improved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial production factory wastewater treatment technical field. BACKGROUND

[0002] CN108862904A discloses a kind of production wastewater treatment device, the treatment device includes water inlet pipe and fine filter pool, further include the communication of anaerobic pool, anoxic pool, aerobic pool, first membrane pool, anaerobic pool, aerobic pool, second membrane pool and water outlet pipe in proper order;The water outlet pipe other end connects the clean water inlet of centrifugal filter device;The water inlet pipe is provided with multiple rotating wheels, and the rotating wheel is connected to power generation device by rotating shaft, and the power generation device is electrically connected to battery, and the battery is electrically connected to motor, and the rotating shaft and rotating wheel are hollow structure, the back water of the rotating wheel one side is equipped with multiple small holes, and the rotating shaft and dosing device communicate;Wastewater is subjected to a series of wastewater treatment process, to realize the all-around purification treatment of wastewater and improve the purification degree of wastewater.

[0003] The above-mentioned technology needs long process, and because the organic matter content in building material process wastewater is low, therefore, the above-mentioned technology implementation is not reasonable, and it is not suitable to treat building material wastewater with process for treating domestic wastewater.

[0004] CN209577552U discloses a kind of building material production system, specifically relates to building material production system field, including first cleaning chamber, the first cleaning chamber one side is equipped with second cleaning chamber, the second cleaning chamber one side is equipped with third cleaning chamber, the third cleaning chamber one side is equipped with fourth cleaning chamber, the first cleaning chamber, second cleaning chamber, third cleaning chamber and fourth cleaning chamber outer side are equipped with wastewater treatment device, the fourth cleaning chamber outer side is connected with first drying chamber.The utility model is through being equipped with multiple cleaning chambers and wastewater treatment device, multiple cleaning chambers sequentially clean building material, first water pump is extracted to the corresponding processing shell in multiple cleaning chambers in cleaning process respectively, cleaning liquid is sequentially removed through screen, filter screen and activated carbon adsorption layer The impurities doped in cleaning liquid, then second water pump is again connected to corresponding cleaning chamber in the cleaning liquid after processing, realize the utilization of water circulation, save a lot of water resources.

[0005] CN205241392U discloses a wastewater treatment system for plate production, comprising an activated carbon filter tank, a metal membrane filter tank, a mechanical filter tank, a chemical reaction tank, a sludge treatment system, the sludge treatment system is connected with the activated carbon filter tank, the metal membrane filter tank and the mechanical filter tank respectively, the reaction liquid loader is connected with the chemical reaction tank, the chemical reaction tank is connected with the mechanical filter tank, the mechanical filter tank is connected with the metal membrane filter tank, the metal membrane filter tank is connected with the activated carbon filter tank, and the activated carbon filter tank is connected with a quenching system. Practical new type content

[0006] In order to solve the problems of the prior art, the utility model provides an industrial production wastewater high -efficient precipitation device for solving the problems of low intensification degree and low production efficiency in the treatment of industrial wastewater generated in the production of building materials.

[0007] The utility model solves the technical scheme that technical problem adopts:

[0008] An industrial production wastewater high -efficient precipitation device is arranged in sequence from front to back according to wastewater treatment line, and is provided with self -settling and intercepting pool, self -settling area pool, dosing equipment and sedimentation tank, characterized in that: the self -settling and intercepting pool is sequentially divided into vortex area, accelerated subsidence area and gathering area from top to bottom, and a backwater pipe is arranged at the central position, the upper end of the backwater pipe is connected with a pump, the lower end of the backwater pipe is inserted into the junction of the accelerated subsidence area and the gathering area, part of wastewater is lifted along the pump and discharged to the effluent area from the lower end of the backwater pipe, the effluent area is located in the area of the periphery of the vortex area and is communicated with the vortex area, and the effluent area is connected with the self -settling area pool of the subsequent process.

[0009] The dosing equipment is arranged through the self -settling area pool and the sedimentation tank.

[0010] The sedimentation tank comprises a labyrinth sedimentation area, a water distribution area, a sludge collection area, a water collection tank and a reclaimed water drainage channel arranged in sequence and through.

[0011] Further, the labyrinth sedimentation area is an array structure and forms a through channel, and the through channel is designed according to the orientation of high-low-high-low.

[0012] Further, the water distribution area is a groove structure, and the bottom of the water distribution area is through the lower sludge collection area through a plurality of grating arrays.

[0013] Further, the middle part of the water collection tank is provided with horizontally arranged fiber filter filaments.

[0014] Further, a water distributor with uniform water distribution function is arranged at the water inlet of the sedimentation tank, the water distributor has a horn-shaped water outlet port, and a conical baffle is arranged at the end face of the port, and the baffle and the water outlet port form an annular water distribution channel.

[0015] Further, the water collecting tank is a stainless steel tank fixed above the pollution collecting area.

[0016] Further, the bottom of the labyrinth sedimentation area and the pollution collecting area is provided with a pollution collecting groove and a pollution discharge pipe, the pollution discharge pipe is connected with a drain groove, and the drain groove is connected with a sludge filter press.

[0017] Further, the reclaimed water drainage channel is connected with an ecological water tower through pumping.

[0018] Further, the bottom of the gathering area is provided with a discharge port connected with a screw conveyor, and the screw conveyor is connected with a sludge filter press.

[0019] Further, a plurality of branch pipes are fixed at the lower end of the water return pipe, a row of micro-holes are arranged at the lower edge of the branch pipes, and the micro-holes are arranged vertically downward.

[0020] The beneficial effects of the utility model are:

[0021] The core function area in the technical implementation is designed in a three-dimensional manner with the self-sedimentation and pollution blocking tank and the sedimentation tank, and has the effect of accelerating sedimentation, so that the intensification degree in wastewater treatment is improved, the production efficiency is improved, the centralized treatment of industrial wastewater and wastewater is realized, and the technology will be further described in combination with the drawings of the specification. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a flow chart of the efficient sedimentation device.

[0023] Figure 2 It is a structural schematic view of the self-sedimentation and pollution blocking tank.

[0024] Figure 3 It is a horizontal layout view of the self-sedimentation and pollution blocking tank.

[0025] Figure 4 It is an installation state of the self-sedimentation and pollution blocking tank and the screw conveyor thereof.

[0026] Figure 5 It is a plan view of the sedimentation tank.

[0027] Figure 6 It is Figure 5 It is a sectional view of 1-1.

[0028] Figure 7 It is Figure 5Fig. 4 is a sectional view of the middle part 4-4.

[0029] Figure 8 For Figure 5 Fig. 3 is a sectional view of the middle part 3-3.

[0030] Figure 9 For Figure 5 Fig. 2 is a sectional view of the middle part 2-2.

[0031] In the figure:

[0032] 10 self-settling and sludge retaining tank, 11 vortex area, 111 water inlet, 112 water outlet, 12 accelerated settling area, 13 gathering area, 131 discharge port, 14 backwater pipe, 141 branch pipe, 15 pump, 16 screw conveyor, 17 water outlet area,

[0033] 20 self-settling area tank,

[0034] 30 dosing equipment,

[0035] 40 sedimentation tank, 41 labyrinth sedimentation area, 42 water distribution area, 43 sludge collection area, 44 water collection tank, 45 reclaimed water drainage channel, 46 water distributor, 461 sewage pipe, 462 drainage tank, 461' sewage pipe, 47 fiber filter bundle,

[0036] 50 sludge filter press,

[0037] 60 ecological water tower. DETAILED DESCRIPTION

[0038] The embodiment is based on the device for efficient sedimentation of industrial wastewater generated in building material production. The wastewater treatment system is described along the path of wastewater movement.

[0039] Sand setting: used to remove inorganic and easily settled substances in wastewater.

[0040] Sedimentation: more economical removal of suspended organic matter, reduction of organic load of subsequent biological treatment structures, separation of biofilm, activated sludge, etc. produced in biological treatment processes, and clarification of treated water.

[0041] Sludge concentration equipment, further concentrating the sludge obtained by sedimentation to reduce volume, reduce the size of subsequent structures and treatment costs, etc.

[0042] Reference Figure 1 First, there is a self-settling and sludge retaining tank 10 in the area, which completes the settlement of coarse sand, blocky materials, etc. with a density greater than water in the wastewater, to reduce the probability of subsequent process blockage and wear.

[0043] Further, the self-settling and trash-trapping tank 10 is from top to bottom: a tangential vortex zone 11, an accelerated settling zone 12, a collection zone 13, and a self-settling pipe 14 is arranged at the central position from top to bottom, and the upper end of the self-settling pipe 14 is connected to a pump 15. The lower end of the self-settling pipe 14 is inserted into the interface between the accelerated settling zone 12 and the collection zone 13, and is blocked, and a plurality of branch pipes 141 are fixed at a position close to the lower end of the self-settling pipe 14, and a row of micro-holes are arranged on the lower edge of the branch pipes, the micro-holes are arranged vertically downward, part of the wastewater enters the self-settling pipe 14 from the micro-holes, and is lifted by the pump 15 to be discharged to a water outlet zone 17, the water outlet zone is a region located at the periphery of the vortex zone 11, which is an extension of the vortex zone, and the water outlet zone is connected to a water outlet 112, and is connected to a drainage pipe outside the water outlet zone, and is connected to a self-settling zone tank 20 of a subsequent process. In this process, the particles are accelerated to sink by the water flow, which is beneficial to form rapid collection.

[0044] The design of the self-settling pipe 14 described above has an accelerated downward acceleration to the water flow, and the existence of the acceleration makes the suspended particles in the wastewater begin to accelerate downward motion, and the accelerated motion is superimposed with the action of gravity to produce accelerated motion. After a very short time, the effective weight of the particles in the water and the resistance reach a new balance, and thereafter the particles sink at a constant speed. Part of the water flow enters the self-settling pipe through the branch pipes to complete the acceleration process. Through the implementation of the above process, the particles are accelerated to sink, which reduces the efficiency of sinking and improves the production capacity per unit space.

[0045] The self-settling and trash-trapping tank 10 described above is a container-shaped structure formed by welding steel plates, the upper part is cylindrical, the lower part is conical, the shell structure, and a spiral vortex zone 11 is arranged in the cylindrical part. The bottom of the conical collection zone 13 is a discharge port 131, and a screw conveyor 16 is arranged at the discharge port 131, and the screw conveyor is arranged obliquely, that is, the material collecting port of the screw conveyor corresponds to the discharge port of the collection zone, and is sealed, and the screw conveyor is used to lift the sediment, and the discharge port of the screw conveyor is higher than the material collecting port, and is connected to a storage bin through a pipeline to store the sediment.

[0046] The vortex zone 11 described above has a tangential water inlet 111 and a non-tangential water outlet 112, and the drainage ratio between the tangential water outlet and the self-settling pipe is basically 1:1.

[0047] The self-sedimentation and the effect of the trash screen 10 is to remove the sand and stone entrained in the wastewater by the method of gravity sedimentation. The wastewater generated in the building material production often contains inorganic sand and stone, which will be deposited in the wastewater treatment device or cause wear and tear, causing equipment operation failure. In order to ensure the normal work of the system, the sand should be removed in advance before the wastewater treatment. The traditional gravity sand setting is improved by the structure to realize the purpose of accelerating sand setting and rapid sand setting. Under the same treatment tonnage condition, the small size design is realized, which is beneficial to the integrated design.

[0048] The self-sedimentation and the trash screen 10 are helical tangent water inlet directions, and the water inlet horizontal flow velocity is preferably between 0.15-0.3 m / s, and the residence time is not less than 30 s. Figure 3 The advantage of entering the self-sedimentation and the trash screen in the tangent direction is that the particulate matter in the water flow can be centrifuged, which has a positive effect on the separation of the particulate matter. The self-sedimentation and the trash screen 10 should be not less than two, so that the work can be switched, and one is used as a spare, and the other is used as a standby. Figure 4 .

[0049] Another object of the present application is to provide a self-sedimentation device with adjustable parameters. The adjustable parameters refer to the adjustment of the settling distance of the sediment, that is, the specific gravity and density of the suspended matter are automatically adjusted. The design is used to improve the efficiency of self-sedimentation, thereby providing a possibility for miniaturization and intensification of the equipment.

[0050] Further improvement, specifically, the backwater pipe 14 in the embodiment is installed in the self-sedimentation and the trash screen 10 through a group of vertically adjustable electric lifting mechanisms, specifically, the electric lifting mechanism is used for adjusting the height of the backwater pipe, specifically, the vertical guide rail and the driving motor are arranged between the backwater pipe and the self-sedimentation and the trash screen, the height of the backwater pipe is driven by the driving motor, and the effective height of the backwater pipe is adjusted, and the height adjustment realizes the settling height distance of the sediment.

[0051] The self-sedimentation zone pool 20 utilizes gravity sedimentation, and the free sediment particles are in a dispersed state in the sedimentation process, do not interfere with each other, and the shape, size, density and the like are not changed, and the sinking speed is constant. This type of sedimentation often occurs when the suspended matter concentration is not high and has no flocculation. Since the self-sedimentation zone pool is a pool structure, it will not be described again.

[0052] Then the dosing device 30 is added, the addition of the medicine such as flocculant and the like is completed in the dosing device, and after being effectively mixed with the wastewater, it enters the next process of the sedimentation tank 40.

[0053] Then is the sedimentation tank 40, in which the flocculation and sedimentation of suspended impurities are completed, which is specially designed to have the function of shock cleaning, and has the self-cleaning performance, overcoming the disadvantages of the prior art that the filter components need to be cleaned regularly.

[0054] When the concentration of suspended matter in water is not high, but has flocculation, in the sedimentation process, particles coagulate with each other, and the particle size and mass increase, and the sedimentation speed increases.

[0055] Because the raw water contains flocculating suspended matter, large particles will catch up with small particles during the sedimentation process, collide and coagulate with each other to form larger flocculation, so the sedimentation rate will increase with the depth.

[0056] The relationship between the flow path and the settling path of the wastewater is that the forward direction between them is conducive to the acceleration of the settling, and the reverse direction between them is not conducive to the acceleration of the settling.

[0057] Therefore, the sedimentation tank 40 in the utility model in proper order comprises a labyrinth sedimentation area 41, a water distribution area 42, a sewage collection area 43, a water collection tank 44, and a reclaimed water drainage channel 45. Figure 5 The direction of the water flow is set according to the high-low-high-low direction of the through channels, and the depth of the water surface is 0.2 m.

[0058] After the water flows out of the labyrinth sedimentation area 41, it enters the water distribution area 42, which is a long and narrow groove structure.

[0059] The labyrinth grid square structure in the embodiment has a deep depth, and the depth-width ratio is 7:1.

[0060] The bottom of each labyrinth grid is a conical structure, which has a higher sewage collection effect.

[0061] Therefore, the accelerated settling channel and the clear water upturning channel are designed, and further, the middle part of the water collection tank 44 is provided with horizontally arranged fiber filter filaments 47.

[0062] The water inlet of the sedimentation tank 40 should ensure uniform water distribution along the tank width, with an inlet flow rate of less than 25 mm / s, and a water distributor 46 with uniform water distribution function is provided at the water inlet of the sedimentation tank, which includes a horn-shaped water outlet and a conical baffle at the end face of the outlet, forming an annular water distribution channel. When the wastewater in the water outlet is distributed, the water can be uniformly distributed on the top of the sedimentation tank, effectively ensuring that the existing bottom sediment is not washed away, and the sediment is discharged through the bottom drain pipe 461 into the drainage tank 462.

[0063] The conventional gravity sedimentation requires a large site, and in this technology, the labyrinth sedimentation area with a honeycomb structure design can realize large-area gravity sedimentation in a smaller site.

[0064] In the above-mentioned labyrinth sedimentation area 41, the medicament and wastewater are further mixed, which is beneficial to the maximum efficacy of the medicament.

[0065] The clarified water overflowed from the water distribution area 42 enters the water collecting tank 44, which is a stainless steel tank fixed above the sedimentation area. The existence of the water collecting tank allows the clarified water to overflow into the reclaimed water drainage channel or drainage pipeline in the next process and then be collected in the PH adjusting tank. The PH of the treated water in the PH adjusting tank is adjusted to form reclaimed water that meets the standards for building material production.

[0066] The reclaimed water generated in the water collecting tank 44 enters the reclaimed water drainage channel by overflow. The reclaimed water drainage channel 45 finally pumps the reclaimed water out, for example, into the ecological water tower 60 for storage of the reclaimed water. In this embodiment, the ecological water tower uses plant purification principles to ecologically purify the reclaimed water.

[0067] The sludge obtained from the above-mentioned sedimentation and deposition is treated and compressed by a sludge filter press 50, and a sludge conveyor is provided. The sludge filter press is used to concentrate and treat the sludge generated at the bottom of the sedimentation tank, and the wastewater generated in this process is returned to the water inlet of the sedimentation tank through a reflux pipeline, achieving zero discharge.

[0068] Through the implementation of the above-mentioned process, rapid treatment of wastewater is realized, and the treatment effect of wastewater is improved under the condition of the same volume.

[0069] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the present application made by those skilled in the art shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A high-efficiency sedimentation device for industrial wastewater, comprising, in a wastewater treatment line arranged sequentially from front to back, a sedimentation tank and a sludge trap, a sedimentation zone, a dosing device, and a sedimentation tank, characterized in that: The self-sedimentation and the silt trap are sequentially divided from top to bottom into a vortex area, an accelerated sinking area and an aggregation area, and a backwater pipe is arranged at a central position, the upper end of the backwater pipe is connected to a pump, the lower end of the backwater pipe is inserted into the junction of the accelerated sinking area and the aggregation area, part of the wastewater is lifted from the lower end of the backwater pipe and discharged to a water outlet area, the water outlet area is located in a region outside the vortex area and is in communication with the vortex area, and the water outlet area is connected to a self-sedimentation area pool of a subsequent process. A dosing device is arranged between the self-sedimentation area pool and the sedimentation pool. The sedimentation pool comprises a labyrinth sedimentation area, a water distribution area, a silt collection area, a water collection tank and a reclaimed water drainage channel arranged from front to back and penetrating through.

2. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The labyrinth sedimentation area is an array structure and forms a penetrating channel, and the penetrating channel is designed according to the orientation of high-low-high-low.

3. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The water distribution area is a tank structure, and the bottom of the water distribution area is penetrated through the silt collection area below by a plurality of grating arrays.

4. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, A fiber filter bundle is arranged in the middle of the water collection tank.

5. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, A water distributor with uniform water distribution function is arranged at the water inlet of the sedimentation pool, the water distributor has a horn-shaped water outlet pipe, and a conical baffle is arranged at the end face position of the pipe, and the baffle and the water outlet pipe form an annular water distribution channel.

6. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The water collection tank is a stainless steel tank fixed above the silt collection area.

7. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The bottom of the labyrinth sedimentation area and the silt collection area is provided with a silt collection groove and a sewage pipe, the sewage pipe is connected to a drainage tank, and the drainage tank is connected to a sludge filter press.

8. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The reclaimed water drainage channel is connected to an ecological water tower through pumping.

9. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, The bottom of the aggregation area has a discharge port connected to a screw conveyor, and the screw conveyor is connected to a sludge filter press.

10. The industrial production wastewater high-efficiency precipitation device according to claim 1, characterized in that, A plurality of branch pipes are fixed at the lower end of the backwater pipe, a row of micropores are arranged on the lower edge of the branch pipes, and the micropores are vertically downward.

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