CN218988868U

CN218988868U - Sewage low-temperature concentration quality-separating treatment device

Info

Publication number: CN218988868U
Application number: CN202221482795.0U
Authority: CN
Inventors: 罗时雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-05-09
Anticipated expiration: 2032-06-15

Abstract

The utility model provides a sewage low-temperature concentration quality-classifying treatment device, which comprises a high-level storage tank and a processor, wherein the processor comprises a heating box, a dewatering box, a vacuum pump and a concentrated solution water box; the heating box is arranged below the high-level storage tank; a plurality of heaters are arranged in the heating box; the dewatering box is fixed on the side surface of the heating box, and a water outlet communicated with the upper side of the interior of the heating box is arranged at the upper part of the side wall of the dewatering box; a plurality of layers of partition boards are arranged in the dewatering box from top to bottom; the vacuum pump is arranged at the top of the dewatering box, and the air extraction end of the vacuum pump is communicated with the inner side of the top of the dewatering box; the concentrated solution tank is arranged at the bottom of the dewatering tank and is communicated with the bottom of the dewatering tank through a connecting pipe with a valve II; the sewage water inlet end forms a liquid seal through the valve I and the heating box, and the water outlet end ensures that at least one of the valve II or the valve III is closed, so that the dewatering box becomes a closed space. The utility model can realize continuous production; the degree of automation is high; the treatment cost is low; the equipment is simple and the integration is high; the sewage treatment capacity is large and the treatment efficiency is high.

Description

Sewage low-temperature concentration quality-separating treatment device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage low-temperature concentration and quality-separation treatment device.

Background

In production and life, special sewage which is difficult to treat, such as brewing wastewater, landfill leachate, heavy metal wastewater and the like, is difficult to treat to reach the standard by utilizing a common sewage treatment process or relying on the existing urban sewage treatment plant.

The conventional treatment methods of the brewing wastewater and landfill leachate all need to carry out front-end treatment through anaerobic fermentation, chemical precipitation and other processes, so that most pollutants such as COD, ammonia nitrogen, total phosphorus and the like in the wastewater are removed, and the subsequent treatment can be carried out by utilizing the sewage treatment process of an activated sludge method or a contact oxidation method. The front-end treatment equipment is large in investment, long in treatment time and high in treatment cost. The front end treatment of the brewing wastewater is also carried out by high-temperature evaporation treatment, namely, the brewing wastewater is separated into low-concentration steam condensate and high-concentration concentrated solution in a sequencing batch mode, the low-concentration sewage is treated by a conventional sewage treatment process, or directly enters a municipal domestic sewage treatment plant for treatment, and the high-concentration concentrated solution is comprehensively utilized as feed or fertilizer. The front end treatment of landfill leachate also has the membrane treatment, namely, the water and part of small molecular pollutants pass through the action of the infiltration membrane to become low-concentration sewage, and most pollutants are intercepted to become high-concentration sewage, the low-concentration sewage is treated by a conventional sewage treatment process, or directly enters a municipal domestic sewage treatment plant to be treated, and the high-concentration sewage is recycled to the landfill.

Some mining enterprises, or manufacturing enterprises, may produce heavy metal wastewater. The absolute concentration of the heavy metal wastewater is usually very low and is lower than 1mg/L, but is higher than the discharge standard, and the heavy metal wastewater cannot be directly discharged. The pollution-producing enterprises cannot process themselves, only can spend high processing fees and inconvenient freight fees, and entrust qualified professional institutions to process.

The existing methods for treating the brewing wastewater and the heavy metal wastewater are evaporation concentration and quality separation, but almost all methods are sequencing batch type high-temperature normal-pressure evaporation, so that the energy consumption is high, waste gas pollution needs to be treated, continuous production cannot be realized, the occupied area of equipment is large, the integration is low, the equipment is difficult to move, the equipment is complex, the investment is high, and the comprehensive operation cost is high.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a sewage low-temperature concentration and quality-separation treatment device.

The utility model aims at realizing the following technical scheme:

the sewage low-temperature concentration and quality-separation treatment device comprises a high-level storage tank filled with sewage and a processor, wherein the processor comprises a heating box, a dewatering box, a vacuum pump and a concentrated solution water tank; the heating box is arranged below the high-level storage tank and is communicated with the high-level storage tank through a sewage pipe with a valve I; a plurality of heaters are arranged in the heating box; the dehydration tank is fixed on the side surface of the heating tank, and a water outlet communicated with the upper side of the interior of the heating tank is arranged at the upper part of the side wall of the dehydration tank; a plurality of layers of partition boards are arranged in the dewatering box from top to bottom, and the uppermost first layer of partition board is positioned below the water outlet; the middle parts of all odd-layer partition boards and two ends of all even-layer partition boards are provided with water outlets communicated with the lower-layer space, the edges of the water outlets of all the partition boards are provided with overflow weirs higher than the upper surface of the partition boards, and the overflow weirs and the inner wall of the dewatering box form a water accumulation groove with high edges and low inner parts on the upper surface of the partition boards; the vacuum pump is arranged at the top of the dewatering box and is used for vacuumizing the dewatering box, and the air extraction end of the vacuum pump is communicated with the inner side of the top of the dewatering box; the concentrated solution tank is arranged at the bottom of the dewatering tank and is communicated with the bottom of the dewatering tank through a connecting pipe with a valve II; the sewage water inlet end forms a liquid seal through the valve I and the heating box, the water outlet end ensures that at least one of the valve II or the valve III is closed, the dewatering box becomes a closed space, sewage flows out from the high-level storage tank, and after being heated by the heating box and dewatered by the dewatering box in sequence, most of the sewage water is changed into steam to be pumped by a vacuum pump in a vacuum environment, and the rest sewage water becomes concentrated solution to flow into the concentrated solution tank.

In order to further increase the treatment capacity and improve the treatment efficiency, the utility model further adopts the following treatment device to treat sewage.

The processor also comprises a sewage dispersing mechanism which is placed in the water tank with the upper surface area of the partition board and can move up and down. The sewage dispersing mechanism comprises a lifting device, a bracket, a movable rod and a movable groove; the lifting device is suspended and arranged at the top of the dewatering box through a bracket, and the telescopic end of the lifting device moves downwards periodically and up and down; the movable rod is vertically arranged in the dewatering box, the upper end of the movable rod penetrates through the top of the dewatering box and is fixedly connected with the telescopic end of the lifting device, and the lower end of the movable rod sequentially penetrates through the middle water outlet of the odd-layer partition plate and the middle of the even-layer partition plate from top to bottom and can move up and down freely; the movable groove is a frame body which is placed in the ponding groove of the even-layer partition board and sleeved outside the movable rod, a plurality of through holes are formed in the bottom of the movable groove, and the middle of the movable groove is fixed on the movable rod and can move up and down along with the movable rod.

The utility model has the beneficial effects that:

first, continuous production can be achieved. Compared with the conventional normal pressure evaporation process, the vacuum distillation technology can greatly improve the evaporation rate, and creates conditions for continuous production; the inlet and outlet liquid sealing mode is adopted, so that the difficulty of sealing the inlet and outlet materials is solved, and continuous production is realized.

Second, the degree of automation is high. As continuous production can be realized, compared with the traditional sequencing batch sewage evaporation process, a plurality of operation links can be reduced, and a plurality of links can realize automatic control.

Third, the processing cost is low. The vacuum distillation technology is adopted to reduce energy consumption, continuous production improves treatment efficiency, automatic control saves manpower, and process equipment is simple to reduce failure rate, so that treatment cost is low.

Fourth, the device is simple and highly integrated. The sewage treatment device mainly comprises a high-level storage tank and a processor, and has simple structure and small occupied area. The sewage treatment is mainly carried out in the processor, and the processor has compact structure, high integration and convenient movement.

Fifth, the sewage treatment capacity is large, and the treatment efficiency is high. The evaporation surface of the sewage is enlarged by arranging a plurality of layers of water tanks and a plurality of overflow weirs in the dewatering box; meanwhile, by further arranging the sewage dispersing mechanism, the activity of sewage in the dewatering box and the evaporation surface are increased, the evaporation of water is further promoted, the sewage treatment capacity is increased, and the evaporation efficiency is higher.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic view showing the structure of a treatment apparatus according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view showing the structure of a treatment apparatus according to embodiment 2 of the present utility model;

FIG. 3 is a schematic view showing the structure of the processing device according to the embodiment 2 of the present utility model when the movable tank is lifted;

the figure shows: 1-high-level storage tank, 2-heating tank, 3-dewatering tank, 4-vacuum pump, 5-circulating water tank, 6-concentrate water tank, 7-baffle, 8-heater, 9-sewer pipe, 10-valve I, 11-outlet, 12-overflow weir, 13-water outlet, 14-connecting pipe, 15-valve II, 16-blow-down pipe, 17-valve III, 18-drain pipe, 19-valve IV, 20-lifting device, 21-bracket, 22-movable rod and 23-movable groove.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper", "lower", "left", "right", "middle", etc. are used herein for convenience of description, but are not to be construed as limiting the scope of the utility model, and the relative changes or modifications are not to be construed as essential to the scope of the utility model.

Example 1:

the utility model relates to a sewage low-temperature concentration quality-classifying treatment device, which utilizes a vacuum distillation technology to divide difficult-to-treat brewing wastewater, landfill leachate, heavy metal wastewater and the like into steam condensate and concentrated solution, wherein the steam condensate can be treated by a simple, mature and economic method, and the concentrated solution can be treated by a comprehensive utilization, recharging, chemical precipitation and other methods.

As shown in fig. 1, the processing device comprises a high-level tank 1 and a processor.

The high-level storage tank 1 is used for containing sewage, and the sewage comprises brewing wastewater, landfill leachate, heavy metal wastewater and the like. The water outlet end of the high-level storage tank 1 is higher than the water outlet of the heating box 2.

The processor comprises a heating box 2, a dewatering box 3, a vacuum pump 4 and a concentrated solution water tank 6, wherein the heating box 2, the dewatering box 3 and the concentrated solution water tank 6 are all integrally connected.

The heating tank 2 is arranged below the high-level storage tank 1 and is communicated with the high-level storage tank 1 through a sewage pipe 9 with a valve I10. One end of the sewage pipe 9 is communicated with the water outlet end at the bottom of the high-level storage tank 1, the other end of the sewage pipe is communicated with the bottom of the heating box 2, and a valve I10 arranged on the sewage pipe 9 is used for controlling sewage to enter the heating box 2. The inside of the heating box 2 is provided with a plurality of heaters 8, the heaters 8 are electric heaters (such as electric heating tubes or electric heating rods), the heaters 8 are arranged from bottom to top in the inside of the heating box 2, sewage flows from bottom to top, the temperature can gradually rise, the 1-2 heaters positioned at the top are connected with temperature controllers for controlling the water temperature at the water outlet 13, the temperature of the water outlet 13 is controlled, and the water temperature of the sewage flowing out of the water outlet 13 is less than 100 ℃.

The dewatering box 3 is fixed on the side surface of the heating box 2, a water outlet 13 communicated with the upper side inside the heating box 2 is arranged at the upper part of the side wall of the dewatering box 3, and the dewatering box 3 and the heating box 2 are integrally connected, so that the dewatering box 3 shares one side wall, the water outlet 13 is arranged on the side wall and communicated with the upper part inside the dewatering box 3 and the upper part inside the heating box 2, and the height of the water outlet 13 is lower than the height of the water outlet end of the high-level storage tank 1. A plurality of layers of partition boards 7 (seven layers are shown in fig. 1, the partition boards 7 are in a drawer type structure) are arranged in the dewatering box 3 from top to bottom, and the uppermost first layer of partition boards 7 (namely, the uppermost partition board 7 is set to be the first layer) is positioned below the water outlet 13; the middle parts of all odd-layer partition plates 7 and the two ends of all even-layer partition plates 7 are provided with water outlets 11 communicated with the lower-layer space, the edges of the water outlets 11 of all the partition plates 7 are provided with overflow weirs 12 higher than the upper surface of the partition plates 7, and the overflow weirs 12 and the inner wall of the dewatering box 3 form a water accumulation groove with high edges and low inner parts on the upper surface of the partition plates 7. All the odd-layer partition plates 7 are annular (square rings or circular rings), after the water in the water storage tanks of the odd-layer partition plates 7 is higher than the overflow weir 12 in the middle of the water storage tanks, the water flows from the overflow weir 12 to the water outlet 11 and flows into the water storage tanks of the lower-layer (even-layer) partition plates 7 through the water outlet 11, and after the water in the water storage tanks of the even-layer partition plates 7 is higher than the overflow weirs 12 at the two ends of the water storage tanks, the water flows into the water storage tanks of the lower-layer partition plates 7 from the water outlet 11 at the two ends of the even-layer partition plates 7, and then flows downwards alternately until the water flows to the bottom of the dewatering tank 3.

The vacuum pump 4 is arranged at the top of the dewatering box 3 and is used for vacuumizing the dewatering box 3, and the air exhaust end of the vacuum pump 4 is communicated with the inner side of the top of the dewatering box 3; the vacuum pump 4 is a water ring type vacuum pump. The vacuum degree in the dewatering box 3 is controlled to be-75 to-90 kpa by a vacuum pump 4.

A circulating water tank 5 for supplementing working fluid for the vacuum pump 4 is arranged at the top of the heating tank 2 and the dewatering tank 3; the circulating water tank 5 is in circulating conduction with the vacuum pump 4 through two circulating water pipes, and the bottom of the outer side of the circulating water tank 5 is connected with a drain pipe 18 with a valve IV 19. The working solution in the circulating water tank 5 continuously circulates in the vacuum pump 4 through two circulating water pipes (the circulating water tank 5 and the vacuum pump 4 form an annular loop through the two circulating water pipes), a large amount of water becomes steam in a negative pressure environment, the steam is pumped away by the vacuum pump 4, and the working solution can effectively reduce the temperature of the steam entering the vacuum pump 4 due to the large temperature difference between the working solution in the circulating water pipe and the steam entering the vacuum pump 4, so that the steam is quickly condensed into water and is merged into the working solution, and finally the water is led into the circulating water tank 5. The water in the circulating water tank 5 is required to be discharged intermittently through the drain pipe 18 by timely opening the valve IV 19 according to the water temperature and the water level, and the operation of the vacuum pump 4 is required to be ensured when the water cannot be discharged completely; tap water is supplemented in an appropriate amount to ensure condensation of water vapor. The water in the circulating water tank 5 also contains a certain amount of pollutants, but the concentration is far lower than that of the original sewage, and the sewage can be treated by the process of a common sewage treatment plant or discharged into a town sewage treatment plant for treatment.

The concentrated solution tank 6 is arranged at the bottom of the dewatering tank 3 and is communicated with the bottom of the dewatering tank 3 through a connecting pipe 14 with a valve II 15, namely one end of the connecting pipe 14 is communicated with the bottom of the inner side of the dewatering tank 3, and the other end of the connecting pipe is communicated with the concentrated solution tank 6; the sewage water inlet end forms a liquid seal through the valve I and the heating box (the resistance formed by the liquid seal is larger than the pumping force of the water ring pump), the water outlet end ensures that at least one of the valve II or the valve III is closed, so that the dewatering box 3 becomes a closed space, sewage water flows out from the high-level storage tank 1, and after being heated by the heating box 2 and dewatered by the dewatering box 3 in sequence, most of the sewage water turns into steam to be pumped by the vacuum pump 4 in a vacuum environment, and the rest of the sewage water turns into concentrate water to flow into the concentrate water tank 6. A drain pipe 16 with a valve III 17 is connected to the bottom of the concentrate tank 6. The concentration of water pollutants in the concentrated solution water tank is high, and the subsequent treatment can be carried out by methods of comprehensive utilization (such as brewing wastewater), recharging (such as garbage percolate), chemical precipitation (such as heavy metal wastewater) and the like.

The sewage low-temperature concentration quality-classifying treatment device adopting the treatment device comprises the following steps:

s1, opening a valve I10 on a sewage pipe connected with a high-level storage tank 1, and placing sewage in the high-level storage tank 1 into a heating box 2; after the heating tank 2 is full of sewage (a water level gauge and a water thermometer are arranged on the heating tank 2), the valve I10 is closed, and water inflow is stopped.

S2, starting a heater 8 in the heating box 2 to heat sewage in the heating box 2; the temperature of the water outlet 13 is set (lower than 100 ℃, a water temperature meter is arranged near the water outlet 13 to monitor the temperature of the water outlet 13), and the opening temperature is automatically controlled (realized by adjusting the temperature of the uppermost heater 8 through a temperature controller). Valve three (17) and valve four (19) are closed, and valve two (15) is opened.

S3, adding a small amount of water into the circulating water tank 5 to serve as starting working solution of the vacuum pump 4, starting the vacuum pump 4 after the temperature of the water outlet of the heating tank 2 reaches a set temperature, and evacuating the dewatering tank 3; opening a valve I10, putting cold sewage into the heating box 2, and pushing hot sewage of the heating box 2 into the dewatering box 3; the concentration degree and the treatment speed of the sewage are controlled by a valve I10.

S4, after the hot sewage enters the dewatering box 3, the hot sewage flows into a water accumulation groove of the uppermost baffle 7, then flows to an overflow weir 12 in the middle of the water accumulation groove from the edge of the water accumulation groove, the evaporation area is enlarged, after the water accumulation groove is full (exceeding the overflow weir 12), the sewage flows into the water accumulation groove (middle) of the lower baffle 7 (even baffle 7), then flows to water outlets 11 on two sides from the middle of the water accumulation groove, and after the water level exceeds the overflow weir 12, flows to the lower baffle 7 from the water outlets 11, continuously flows downwards, and a large amount of liquid water in the water accumulation groove and flowing volatilizes into water vapor, is pumped by a vacuum pump 4 and is condensed in the circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is intermittently discharged and sent to a low-concentration sewage treatment facility for treatment.

S5, sewage deposited at the bottom of the dewatering tank 3 and in the concentrated solution tank 6 is concentrated solution; intermittently discharging the concentrated solution in the concentrated solution tank 6; after the concentrate is discharged, the valve III (17) is closed, and the valve II (15) is opened; the concentrated solution is sent to be comprehensively utilized, or is recharged, or is treated by chemical precipitation and other methods.

Example 2:

This embodiment differs from embodiment 1 in that:

the disposer also includes a sewage dispersion mechanism disposed in the surface area sink on the baffle 7 and movable up and down. The sewage dispersing mechanism comprises a lifting device 20, a bracket 21, a movable rod 22 and a movable groove 23.

The lifting device 20 is suspended and arranged at the top of the dewatering box 3 through a bracket 21, and the telescopic end of the lifting device moves downwards and up and down periodically. The lifting device 20 is any one of a hydraulic cylinder, an electric cylinder, a pneumatic push rod and an electro-hydraulic push rod.

The movable rod 22 is vertically arranged in the dewatering box 3, the upper end of the movable rod penetrates through the top of the dewatering box 3 and is fixedly connected with the telescopic end of the lifting device 20, and the lower end of the movable rod penetrates through the middle water outlet 11 of the odd-layer partition 7 and the middle of the even-layer partition 7 from top to bottom in sequence and can move up and down freely. The middle part of the even number layer of baffle plates 7 is provided with a cylindrical cofferdam which surrounds the movable rod 22, and the height of the cofferdam is larger than or equal to the height of the overflow weir 12 at the edge of the baffle plates 7.

The movable groove 23 is a frame body which is placed in the water accumulating groove of the even-layer partition plate 7 and sleeved outside the movable rod 22, a plurality of through holes are arranged at the bottom of the movable groove, and the middle part (upward bulge) of the movable groove 23 is fixed on the movable rod 22 and can move up and down along with the movable rod 22. The movable groove 23 periodically moves up and down along with the movable rod 22, so that the water in the water accumulation groove is further stirred, the water becomes active, the evaporation of the water is accelerated, meanwhile, in the upward moving process of the movable groove 23, water flows out from the through holes at the bottom of the movable groove 23 to form a plurality of linear water columns (or waterlines), the evaporation area of sewage is further enlarged, the water is dispersed, and the evaporation speed of the water is accelerated.

S3, adding a small amount of water into the circulating water tank 5 to serve as starting working solution of the vacuum pump 4, starting the vacuum pump 4 after the temperature of the water outlet 13 of the heating tank 2 reaches a set temperature, and evacuating the dewatering tank 3; opening a valve I10, putting cold sewage into the heating box 2, and pushing hot sewage of the heating box 2 into the dewatering box 3; the concentration degree and the treatment speed of the sewage are controlled by a valve I10.

S4, after the hot sewage enters the dewatering box 3, the hot sewage flows into a water accumulation groove of the uppermost baffle 7, then flows to an overflow weir 12 in the middle of the water accumulation groove from the edge of the water accumulation groove, expands the evaporation area, after the water accumulation groove is full (exceeding the overflow weir), the sewage flows into a movable groove 23 (middle part) in the water accumulation groove of the lower baffle 7 (even baffle), then flows from the middle part of the movable groove 23 to the water outlet 11 on two sides of the water accumulation groove, and after the water level exceeds the overflow weir 12 and two sides of the movable groove 23, flows from the water outlet 11 to the lower baffle 7, and continuously flows downwards, and a large amount of liquid water in the water accumulation groove and flowing volatilizes into water vapor in a vacuum environment, is pumped by a vacuum pump 4 and is condensed in a circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is intermittently discharged and sent to a low-concentration sewage treatment facility for treatment. In the process of flowing water in the dewatering box 2, the lifting device 20 is started, and the lifting device 20 drives the movable groove 23 to periodically move up and down through the movable rod 22, so that the movable groove 23 periodically enters or leaves the water accumulation groove, and the water is stirred and dispersed; the sewage flows out from the water outlet of the odd-layer partition plate and falls into the movable groove 23, after the movable groove 23 is filled with water, the movable rod 22 drives the movable groove 23 to move upwards, in the upward moving process of the movable groove 23, the sewage continuously flows out from the through holes at the bottom of the movable groove 23 to form a plurality of linear water columns (waterline), the evaporation area is enlarged, the linear water columns are rapidly changed into water vapor in the flowing process to be pumped away, and meanwhile, the remained linear water columns continuously strike the sewage in the water accumulation groove, so that the activity of the sewage in the water accumulation groove is improved, and the evaporation of the water is further accelerated.

Example 3:

the present embodiment differs from embodiment 2 in that

In order to further increase the treatment capacity and improve the treatment efficiency, the utility model further adopts the following treatment device to treat the sewage; the present embodiment further adds a movable groove 23 on the basis of embodiment 2; the added movable groove 23 is arranged in the water accumulation groove of the base layer clapboard 7, and the added movable groove 23 is consistent with the base layer clapboard 7 in shape.

When the sewage treatment device is used, after hot sewage enters the dewatering tank 3, the hot sewage firstly flows into the movable groove 23 (edge) in the water accumulating groove of the uppermost baffle 7, then flows from the edge of the movable groove 23 towards the middle overflow weir 12, the evaporation area is enlarged, after the movable groove 23 is filled with sewage (the sewage exceeds the edges of the overflow weir and the movable groove 23), the sewage flows into the movable groove 23 (middle part) in the water accumulating groove of the lower baffle 7 (even baffle), then flows from the middle part of the movable groove 23 towards the water outlet 11 on two sides of the water accumulating groove, and after the water level exceeds the overflow weir 12 and two sides of the movable groove 23, flows from the water outlet 11 to the lower baffle 7, and continuously flows downwards, and a large amount of liquid water in the water accumulating groove and flowing volatilizes into water vapor, is pumped by the vacuum pump 4 and condensed in the circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is intermittently discharged and sent to a low-concentration sewage treatment facility for treatment. In the process of flowing water in the dewatering box 2, the lifting device 20 is started, and the lifting device 20 drives the movable groove 23 to periodically move up and down through the movable rod 22, so that the movable groove 23 periodically enters or leaves the water accumulation groove, and the water is stirred and dispersed; the sewage is continuously flowed into the movable groove 23, after the movable groove 23 is filled with water, the movable rod 22 drives the movable groove 23 to move upwards, in the upward moving process of the movable groove 23, sewage continuously flows out from the through holes at the bottom of the movable groove 23 to form a plurality of linear water columns (waterline), the evaporation area is enlarged, the linear water columns are rapidly changed into water vapor in the flowing process of the linear water columns to be pumped away, meanwhile, the remained linear water columns continuously strike the sewage in the water accumulation groove, so that the activity of the sewage in the water accumulation groove is improved, and the evaporation of the water is further accelerated.

Example 4:

this embodiment differs from

embodiment

2 or 3 in that:

in order to further increase the evaporation rate of water, the movable rod 22 has a hollow structure, and an electrothermal tube or an electrothermal rod is disposed inside the movable rod.

Example 5:

this embodiment differs from embodiments 1-4 in that:

in order to further accelerate the evaporation rate of water and simultaneously make the water fall uniformly, an annular pipe is fixed at the position of the inner wall of the dewatering box 3 above the uppermost laminated water tank, the annular pipe is communicated with the water outlet 13, and a circle of spraying holes are uniformly formed in the bottom of the annular pipe. After entering the annular pipe, the hot water is sprayed into the uppermost laminated water tank from the spraying holes. The annular pipe can be one-circle or multi-circle concentric annular pipe, and the annular pipe fully and uniformly disperses hot water of the water outlet 13, so that the evaporation area of the annular pipe is increased, and the evaporation speed is accelerated.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical substance of the present utility model falls within the protection scope of the present utility model.

Claims

1. The utility model provides a sewage low temperature concentration divides matter processing apparatus, is including high-order storage tank (1) and the treater that are equipped with sewage, its characterized in that: the processor comprises a heating box (2), a dewatering box (3), a vacuum pump (4) and a concentrated solution tank (6); the heating box (2) is arranged below the high-level storage tank (1) and is communicated with the high-level storage tank (1) through a sewage pipe with a valve I (10); a plurality of heaters (8) are arranged in the heating box; the dewatering box (3) is fixed on the side surface of the heating box (2), and a water outlet communicated with the upper side inside the heating box (2) is arranged at the upper part of the side wall of the dewatering box (3); a plurality of layers of partition boards are arranged in the dewatering box (3) from top to bottom, and the uppermost first layer of partition board is positioned below the water outlet; the middle parts of all odd-layer clapboards and two ends of all even-layer clapboards are provided with water outlets communicated with the lower-layer space, the edges of the water outlets of all the clapboards are provided with overflow weirs higher than the upper surface of the clapboards, and the overflow weirs and the inner wall of the dewatering box (3) form a water accumulation groove with high edges and low inner parts on the upper surface of the clapboards; the vacuum pump (4) is arranged at the top of the dewatering box (3) and is used for vacuumizing the dewatering box (3), and the air extraction end of the vacuum pump (4) is communicated with the inner side of the top of the dewatering box (3); the concentrated solution tank (6) is arranged at the bottom of the dewatering tank (3) and is communicated with the bottom of the dewatering tank (3) through a connecting pipe with a valve II (15); the sewage water inlet end forms a liquid seal through the valve I and the heating box, the water outlet end ensures that at least one of the valve II or the valve III is closed, the dewatering box (3) becomes a closed space, sewage flows out from the high-level storage tank (1), and after being heated by the heating box (2) and dewatered by the dewatering box (3), most of the sewage water is turned into steam to be pumped away by a vacuum pump in a vacuum environment, and the rest of the sewage water becomes concentrated liquid to flow into the concentrated liquid tank (6).

2. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 1, wherein: a drain pipe with a valve III (17) is connected to the bottom of the concentrated solution tank (6).

3. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 1, wherein: the heater (8) is an electric heater, the heaters are arranged in the heating box from bottom to top, sewage flows from bottom to top, the temperature can rise gradually, and 1-2 heaters at the top are connected with a temperature controller.

4. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 1, wherein: the vacuum degree in the dewatering tank (3) is controlled at-75 to-90 kpa, and the water temperature of sewage flowing out from the water outlet is less than 100 ℃.

5. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 1, wherein: the water outlet end of the high-level storage tank (1) is higher than the water outlet of the heating box (2).

6. The apparatus for cryogenic concentration and fractionation of wastewater according to any one of claims 1 to 5, wherein: the vacuum pump (4) is a water ring type vacuum pump, and a circulating water tank (5) for supplementing working fluid for the vacuum pump (4) is arranged at the tops of the heating tank (2) and the dewatering tank (3); the circulating water tank (5) is in circulating conduction with the vacuum pump (4) through two circulating water pipes, and the bottom of the outer side of the circulating water tank (5) is connected with a drain pipe with a valve IV (19).

7. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 6, wherein: the processor also comprises a sewage dispersing mechanism which is placed in the water tank with the upper surface area of the partition board and can move up and down.

8. The apparatus for the cryogenic concentration and fractionation of wastewater according to claim 7, wherein: the sewage dispersing mechanism comprises a lifting device, a bracket, a movable rod and a movable groove; the lifting device is suspended and arranged at the top of the dewatering box through a bracket, and the telescopic end of the lifting device moves downwards periodically and up and down; the movable rod is vertically arranged in the dewatering box, the upper end of the movable rod penetrates through the top of the dewatering box and is fixedly connected with the telescopic end of the lifting device, and the lower end of the movable rod sequentially penetrates through the middle water outlet of the odd-layer partition plate and the middle of the even-layer partition plate from top to bottom and can move up and down freely; the movable groove is a frame body which is placed in the ponding groove of the even-layer partition board and sleeved outside the movable rod, a plurality of through holes are formed in the bottom of the movable groove, and the middle of the movable groove is fixed on the movable rod and can move up and down along with the movable rod.