CN218988868U - A low-temperature concentration and quality separation treatment device for sewage - Google Patents

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

A low-temperature concentration and quality separation treatment device for sewage

technical field

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

Background technique

In production and life, there are often some special difficult-to-treat sewage, such as brewing wastewater, landfill leachate, heavy metal wastewater, etc., which cannot be treated up to standard by ordinary sewage treatment processes or relying on existing urban sewage treatment plants.

The conventional treatment methods for brewing wastewater and landfill leachate require front-end treatment through anaerobic fermentation, chemical precipitation and other processes to remove most of the pollutants such as COD, ammonia nitrogen, and total phosphorus in the wastewater, so that the active Sludge method or contact oxidation sewage treatment process for subsequent treatment. The investment in front-end processing equipment is large, the processing time is long, and the processing cost is high. The front-end treatment of brewing wastewater is also treated by high-temperature evaporation, that is, the brewing wastewater is divided into low-concentration steam condensate and high-concentration concentrate through sequencing batches, and low-concentration sewage is treated with conventional sewage treatment processes, or directly enters cities and towns The domestic sewage treatment plant treats it, and the high-concentration concentrate is comprehensively utilized as feed or fertilizer. The front-end treatment of landfill leachate also has membrane treatment, that is, through the function of the percolation membrane, water and some small molecular pollutants pass through to become low-concentration sewage, and most pollutants are intercepted to become high-concentration sewage , Low-concentration sewage is treated by conventional sewage treatment processes, or directly enters urban domestic sewage treatment plants for treatment, and high-concentration sewage is refilled into landfills.

Some mining companies, or manufacturing companies, will produce heavy metal wastewater. The absolute concentration of these heavy metal wastewater is often very low, less than 1mg/L, but higher than the discharge standard and cannot be discharged directly. Pollution-producing enterprises cannot handle it by themselves, and can only entrust qualified professional units to handle it at high processing fees and expensive freight charges.

For the treatment of brewing wastewater and heavy metal wastewater, there are currently methods of evaporation, concentration, and quality separation, but almost all of them are sequenced batch-type high-temperature and atmospheric-pressure evaporation, which consumes high energy and needs to deal with waste gas pollution. Continuous production cannot be achieved, and other The used equipment occupies a large area, is low in integration, difficult to move, complex in equipment, high in investment, and high in overall operating costs.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a low-temperature concentration and quality separation treatment device for sewage.

The utility model purpose is achieved by the following technical solutions:

A low-temperature concentration and separation treatment device for sewage, comprising a high-level storage tank with sewage and a processor, the processor includes a heating box, a dehydration tank, a vacuum pump, and a concentrated liquid water tank; the heating box is arranged under the high-level storage tank and The sewage pipe with its own valve 1 communicates with the high-level storage tank; there are multiple heaters inside the heating box; the dehydration box is fixed on the side of the heating box, and the upper part of the side wall of the dehydration box communicates with the upper side of the heating box The water outlet of the dehydration box is installed from top to bottom with multi-layer partitions, the top first layer of partitions is located below the water outlet; the middle of all odd-numbered partitions and both ends of all even-numbered partitions are provided with The drain outlet connected to the lower space, the edges of all the drain outlets of the clapboard are provided with overflow weirs higher than the upper surface of the clapboard, and the overflow weir and the inner wall of the dehydration tank form a water accumulation tank with a high edge and a low interior on the clapboard surface The vacuum pump is installed on the top of the dehydration tank and is used to evacuate the dehydration tank, and the suction end of the vacuum pump is connected with the inner side of the top of the dehydration tank; The bottom is connected; the sewage water inlet forms a liquid seal through the valve 1 and the heating box, and the water outlet ensures that at least one of the valve 2 or the valve 3 is closed, so that the dehydration tank becomes a closed space, and the sewage flows out from the high-level storage tank, and is heated and dehydrated by the heating box in turn. After the tank is dehydrated, in a vacuum environment, most of it turns into steam and is sucked away by the vacuum pump, and the rest turns into concentrated liquid and flows into the concentrated liquid water tank.

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

The processor also includes a sewage dispersing mechanism placed in the water tank on the surface of the partition and capable of moving up and down. The sewage dispersing mechanism includes a lifting device, a bracket, a movable rod, and a movable groove; the lifting device is suspended on the top of the dehydration tank through a bracket, and its telescopic end is downward to move up and down periodically; the movable rod is vertically arranged on the In the dehydration box, its upper end penetrates the top of the dehydration box and is fixedly connected with the telescopic end of the lifting device, while its lower end passes through the middle of the middle of the odd-numbered partitions and the middle of the even-numbered partitions from top to bottom, and can move up and down freely. Move; the movable tank is placed in the water tank of the even-numbered layer partition and set outside the movable rod. The bottom is provided with many through holes, and the middle part of the movable groove is fixed on the movable rod and can follow the movable rod. Moving up and down.

The beneficial effects of the utility model are:

First, continuous production can be achieved. Compared with the conventional atmospheric pressure evaporation process, the vacuum distillation technology can greatly increase the evaporation rate and create conditions for continuous production; the use of inlet and outlet liquid seals solves the problem of sealing the inlet and outlet materials, enabling continuous production to be realized .

Second, the degree of automation is high. Since continuous production can be realized, compared with the traditional sequential batch sewage evaporation process, many operating links can be reduced, and many links can be automatically controlled.

Third, the processing cost is low. The use of vacuum distillation technology reduces energy consumption, continuous production improves processing efficiency, automatic control saves manpower, and simple process equipment reduces failure rate, so the processing cost is low.

Fourth, the equipment is simple and highly integrated. The sewage treatment device is mainly composed of high-level storage tanks and processors, with a simple structure and a small footprint. Sewage treatment is mainly carried out in the processor, which is compact in structure, highly integrated and easy to move.

Fifth, the sewage treatment capacity is large and the treatment efficiency is high. The evaporation surface of the sewage is enlarged by setting multi-layered water tanks and overflow weirs in the dewatering tank; at the same time, by further setting up a sewage dispersion mechanism, the activity of the sewage in the dehydration tank and the evaporation surface are increased, which is a further step It promotes the evaporation of water, increases the amount of sewage treatment, and has higher evaporation efficiency.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of the processing device described in Embodiment 1 of the utility model;

Fig. 2 is the structural representation of the processing device described in Embodiment 2 of the utility model;

Fig. 3 is a structural schematic diagram when the movable tank of the processing device described in Embodiment 2 of the present invention is lifted;

As shown in the figure: 1-high storage tank, 2-heating box, 3-dehydration tank, 4-vacuum pump, 5-circulating water tank, 6-concentrate water tank, 7-partition, 8-heater, 9-sewage pipe , 10-valve one, 11-drainage port, 12-overflow weir, 13-water outlet, 14-connecting pipe, 15-valve two, 16-sewage pipe, 17-valve three, 18-drainage pipe, 19-valve Four, 20-lifting device, 21-support, 22-movable bar, 23-movable groove.

Detailed ways

The implementation of the present utility model will be illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present utility model from the contents disclosed in this specification. The described embodiments are only some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that the utility model can implement , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of this utility model without affecting the effect and purpose of this utility model. within the scope covered by the disclosed technical content. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the practicable scope of the present utility model. The change or adjustment of the relative relationship within the range, without substantial change in the technical content, should also be regarded as the applicable scope of the utility model.

Example 1:

The utility model relates to a low-temperature concentration and separation treatment device for sewage. The treatment device uses vacuum distillation technology to divide difficult-to-treat brewery wastewater, landfill leachate, and heavy metal wastewater into steam condensate and concentrated liquid. The steam condensate can pass through Simple, mature and economical treatment, the concentrate can be treated by comprehensive utilization, recharge, chemical precipitation and other methods.

As shown in FIG. 1 , the processing device includes a high-level storage tank 1 and a processor.

The high-level storage tank 1 is used to hold sewage, which includes brewing wastewater, landfill leachate, heavy metal wastewater, and the like. The water outlet of the elevated storage tank 1 is higher than the water outlet of the heating tank 2 .

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

The heating box 2 is arranged under the high-level storage tank 1 and communicates with the high-level storage tank 1 through a sewage pipe 9 with a valve 10 . One end of the sewage pipe 9 is connected with the water outlet at the bottom of the high-level storage tank 1, and the other end is connected with the bottom of the heating box 2. The valve-10 provided on the sewage pipe 9 is used to control the sewage into the heating box 2. A plurality of heaters 8 are arranged inside the heating box 2, and the heaters 8 are electric heaters (such as electric heating tubes or electric heating rods). The heaters 8 are arranged from bottom to top inside the heating box 2, and the sewage flows from bottom to top. The temperature will gradually rise, and the 1-2 heaters at the top are connected with a thermostat to control the water temperature at the water outlet 13, so that the temperature of the water outlet 13 must be controllable, and the temperature of the sewage water flowing out of the water outlet 13 is less than 100 ℃.

The dehydration box 3 is fixed on the side of the heating box 2, and the upper part of the side wall of the dehydration box 3 is provided with a water outlet 13 communicated with the upper side of the heating box 2. The dehydration box 3 is integrally connected with the heating box 2, so they share a side wall. The water outlet 13 is arranged on the side wall and communicates with the inner upper part of the dehydration box 3 and the inner upper part of the heating box 2, and the height of the water outlet 13 is lower than the height of the water outlet of the high storage tank 1. In the dehydration box 3, multi-layer partitions 7 are installed from top to bottom (shown in Fig. 1 as seven layers, and the partitions 7 are drawer-type structures), the first layer of partitions 7 on the top (i.e. setting the top partition Plate 7 is the first layer) located below the water outlet 13; the middle of all odd-numbered layer partitions 7 and both ends of all even-numbered layer partitions 7 are provided with drains 11 communicating with the lower space, and the edges of all partitions 7 drains 11 All are provided with the overflow weir 12 that is higher than the upper surface of the dividing plate 7, and the overflow weir 12 and the inner wall of the dehydration box 3 surround a water accumulation tank with high edges and low interior on the upper surface of the dividing plate 7. All odd-numbered baffles 7 are annular (square ring or ring), and after the water in the odd-numbered 7 tanks of the odd-numbered baffles is higher than the overflow weir 12 in the middle, it flows from the overflow weir 12 to the drain 11 and Flow through the outlet 11 into the water tank of the lower (even-numbered) clapboard 7. Similarly, when the water in the pooled tank of the even-numbered clapboard 7 is higher than the overflow weirs 12 at both ends, the water will be separated from the even-numbered layer. The drains 11 at the two ends of the plate 7 flow into the water storage tank of the lower floor partition 7, and so continuously and alternately flow downward until flowing to the bottom of the dehydration box 3 .

The vacuum pump 4 is installed on the top of the dehydration tank 3 and is used to evacuate the dehydration tank 3. The suction end of the vacuum pump 4 communicates with the inner side of the top of the dehydration tank 3; the vacuum pump 4 is a water ring vacuum pump. The vacuum in the dehydration tank 3 is controlled at -75 to -90kpa by a vacuum pump 4 .

A circulating water tank 5 for replenishing working fluid for the vacuum pump 4 is installed on the top of the heating box 2 and the dehydrating tank 3; The drainpipe 18 of valve four 19. The working fluid 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 a circular loop through the two circulating water pipes). Go, because the temperature difference between the working fluid in the circulating water pipe and the water vapor entering the vacuum pump 4 is large, the working fluid can effectively reduce the temperature of the water vapor entering the vacuum pump 4, so that the water vapor can be quickly condensed into water and merged into the working fluid, and finally introduced into the circulation In the water tank 5. The water in the circulating water tank 5 must depend on the water temperature and water level, and timely open the valve 4 19 to discharge intermittently through the drain pipe 18. Note that the discharge cannot be exhausted, and the operation of the vacuum pump 4 must be guaranteed; appropriate amount of tap water is added to ensure the condensation of water vapor. The water in the circulating water tank 5 also contains certain pollutants, but the concentration is far lower than that of raw sewage, which can be processed by ordinary sewage treatment plants or discharged into urban sewage treatment plants for treatment.

The concentrate water tank 6 is installed at the bottom of the dehydration tank 3 and communicates with the bottom of the dehydration tank 3 through a connecting pipe 14 with a valve 2 15, that is, one end of the connecting pipe 14 is connected to the inner bottom of the dehydration tank 3, and the other end is connected to the bottom of the dehydration tank 3. 6 Connected; the sewage water inlet forms a liquid seal through valve 1 and the heating tank (the resistance formed by the liquid seal must be greater than the pumping force of the water ring pump), and the water outlet end ensures that at least one of the valve 2 or valve 3 is closed, so that the dehydration tank 3 becomes In a confined space, the sewage flows out from the high-level storage tank 1, and after being heated by the heating box 2 and dehydrated by the dehydration box 3, in a vacuum environment, most of it becomes steam and is sucked away by the vacuum pump 4, and the rest becomes concentrated liquid and flows to the concentrated liquid In the water tank 6. The sewage pipe 16 with valve three 17 is connected at the bottom of the concentrate water tank 6 . The concentration of water pollutants in the concentrate water tank is very high, and subsequent treatment can be carried out through comprehensive utilization (such as brewing wastewater), recharge (such as landfill leachate), chemical precipitation (such as heavy metal wastewater) and other methods.

The low-temperature concentration and quality separation treatment device for sewage by using the above-mentioned treatment device includes the following steps:

S1. Open the valve 10 on the sewage pipe connected to the high-level storage tank 1, put the sewage in the high-level storage tank 1 into the heating tank 2; meter), close the valve one 10, and suspend water intake.

S2. Start the heater 8 in the heating box 2 to heat the sewage in the heating box 2; set the temperature of the water outlet 13 (below 100°C, set a water thermometer near the water outlet 13 to monitor the temperature of the water outlet 13), and Turn on automatic temperature control (realized by adjusting the temperature of the top heater 8 through a thermostat). Close valve three (17), valve four (19), open valve two (15).

S3. Add a small amount of water into the circulating water tank 5 as the starting working fluid of the vacuum pump 4. After the temperature of the water outlet of the heating box 2 reaches the set temperature, start the vacuum pump 4 to evacuate the dehydration tank 3; open the valve 10 to release the cold sewage Enter the heating box 2, and push the hot sewage in the heating box 2 into the dehydration box 3; control the concentration degree and processing speed of the sewage through the valve 10.

S4. After the hot sewage enters the dehydration tank 3, it first flows into the water storage tank of the uppermost partition 7, and then flows from the edge of the water storage tank to the overflow weir 12 in the middle of the water storage tank, expanding the evaporation area. After the tank is full (over the overflow weir 12), the sewage will flow into the water tank (middle part) of the lower partition 7 (even-numbered layer partition 7), and then flow from the middle of the tank to the drains 11 on both sides , after the water level exceeds the overflow weir 12, it will flow from the outlet 11 to the lower partition 7, and it will continue to flow downward. In a vacuum environment, a large amount of liquid water that is located in the water storage tank and flowing will volatilize into water vapor , is sucked away by the vacuum pump 4, and condensed in the circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is discharged intermittently, and sent to the low-concentration sewage treatment facility for treatment.

S5. The sewage deposited at the bottom of the dehydration tank 3 and the concentrated liquid tank 6 is the concentrated liquid; the concentrated liquid in the concentrated liquid water tank 6 is discharged intermittently; after the concentrated liquid is discharged, close the valve three (17) and open the valve two (15) ; The concentrated solution is sent for comprehensive utilization, or recharge, or chemical precipitation and other methods of treatment.

Example 2:

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

The difference between this embodiment and embodiment 1 is:

The processor also includes a sewage dispersing mechanism placed in the water tank on the upper surface of the partition 7 and capable of moving up and down. The sewage dispersing mechanism includes a lifting device 20 , a bracket 21 , a movable rod 22 and a movable groove 23 .

The lifting device 20 is suspended on the top of the dehydration box 3 through a support 21 and moves up and down periodically with its telescopic end facing downward. Lifting device 20 selects any one in hydraulic cylinder, electric cylinder, pneumatic push rod, electro-hydraulic push rod.

The movable rod 22 is vertically arranged in the dehydration box 3, and its upper end penetrates the top of the dehydration box 3 and is fixedly connected with the telescopic end of the lifting device 20, while its lower end passes through the middle part of the odd-numbered partitions 7 from top to bottom. Outlet 11 and the middle part of even-numbered layer dividing plate 7 can move up and down freely. A cylindrical cofferdam surrounded by movable rods 22 is provided in the middle of even-numbered-layer partitions 7, and the height of the cofferdam is greater than or equal to the height of the overflow weir 12 at the edge of the partition 7.

The movable groove 23 is a frame body placed in the water tank of the even-numbered layer partitions 7 and sleeved outside the movable rod 22. The bottom of the movable groove 23 is provided with many through openings, and the middle part of the movable groove 23 (protruding upward) is fixed on the movable On the bar 22 and can move up and down with the movable bar 22. The movable tank 23 moves up and down periodically with the movable rod 22 to further stir the water body in the water tank to make it active and accelerate its evaporation. At the same time, during the upward movement of the movable tank 23, the water flows out from the through opening at the bottom of the movable tank 23 , forming many linear water columns (or water lines), which further expands the evaporation area of sewage, disperses the water body, and accelerates the evaporation speed of the water body.

The low-temperature concentration and quality separation treatment device for sewage by using the above-mentioned treatment device includes the following steps:

S1. Open the valve 10 on the sewage pipe connected to the high-level storage tank 1, put the sewage in the high-level storage tank 1 into the heating tank 2; meter), close the valve one 10, and suspend water intake.

S2. Start the heater 8 in the heating box 2 to heat the sewage in the heating box 2; set the temperature of the water outlet 13 (below 100°C, set a water thermometer near the water outlet 13 to monitor the temperature of the water outlet 13), and Turn on automatic temperature control (realized by adjusting the temperature of the top heater 8 through a thermostat). Close valve three (17), valve four (19), open valve two (15).

S3. Add a small amount of water in the circulating water tank 5 as the starting working fluid of the vacuum pump 4. After the temperature of the water outlet 13 of the heating box 2 reaches the set temperature, start the vacuum pump 4 to evacuate the dehydration tank 3; open the valve 10 and let it cool The sewage enters the heating tank 2, and pushes the hot sewage in the heating tank 2 into the dehydration tank 3; the concentration degree and processing speed of the sewage are controlled through the valve 10.

S4. After hot sewage enters the dehydration tank 3, it first flows into the water accumulation tank of the uppermost dividing plate 7, and then flows from the edge of the water accumulation tank to the overflow weir 12 in the middle of the water accumulation tank to expand the evaporation area. (over the overflow weir), the sewage just flows to the movable groove 23 (middle part) in the water tank of the lower floor partition 7 (even-numbered layer partition), and then flows from the middle part of the movable groove 23 to the drains 11 on both sides of the water tank. direction flow, after the water level exceeds the overflow weir 12 and the two sides of the movable groove 23, it will flow from the outlet 11 to the lower partition 7, so it will flow downward continuously. The flowing liquid water volatilizes into water vapor, is sucked away by the vacuum pump 4, and condenses in the circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is discharged intermittently, and sent to the low-concentration sewage treatment facility for treatment. When the water flows in the dehydration tank 2, start the lifting device 20, and the lifting device 20 drives the movable tank 23 to move up and down periodically through the movable rod 22, so that the movable tank 23 enters or leaves the water storage tank periodically, agitates and disperses the water body ; Sewage falls in the movable groove 23 after flowing out from the drain outlet of odd-numbered layer clapboard, after the water in movable groove 23 is full, movable rod 22 drives movable groove 23 to move up, and during movable groove 23 moves up process, sewage constantly flows from the movable groove. The through holes at the bottom of the tank 23 flow out to form many linear water columns (water lines) to expand the evaporation area. During the flow of the linear water columns, they quickly become water vapor and are pumped away, while the remaining linear water columns continuously hit the water storage tank The sewage in the storage tank increases the activity of the sewage and further accelerates the evaporation of water.

S5. The sewage deposited at the bottom of the dehydration tank 3 and the concentrated liquid tank 6 is the concentrated liquid; the concentrated liquid in the concentrated liquid water tank 6 is discharged intermittently; after the concentrated liquid is discharged, close the valve three (17) and open the valve two (15) ; The concentrated solution is sent for comprehensive utilization, or recharge, or chemical precipitation and other methods of treatment.

Example 3:

The difference between this embodiment and embodiment 2 is that

In order to further increase the processing capacity and improve the processing efficiency, the utility model further adopts the following treatment device for sewage treatment; this embodiment further increases the movable tank 23 on the basis of embodiment 2; the increased movable tank 23 is installed In the water storage tank of the base layer dividing plate 7, the increased movable groove 23 is consistent with the base number layer dividing plate 7 in shape.

When in use, after the hot sewage enters the dehydration tank 3, it first flows to the movable groove 23 (edge) inside the water storage tank of the uppermost partition 7, and then flows from the edge of the movable groove 23 toward the middle overflow weir 12 to expand evaporation. area, after the movable tank 23 is filled with sewage (sewage exceeds the overflow weir and the movable tank 23 edges), the sewage just flows to the movable tank 23 (middle part) in the water storage tank of the lower floor partition 7 (even-numbered layer partition), Then flow from the middle part of the movable groove 23 to the discharge outlet 11 on both sides of the water accumulation groove, and after the water level exceeds the overflow weir 12 and the two sides of the movable groove 23, it will flow from the discharge outlet 11 to the lower floor dividing plate 7, and so on. Flowing downward, in a vacuum environment, a large amount of liquid water located in the water storage tank and flowing is volatilized into water vapor, which is sucked away by the vacuum pump 4 and condensed in the circulating water tank 5; the low-concentration sewage in the circulating water tank 5 is discharged intermittently, Sent to low-concentration sewage treatment facilities for treatment. When the water flows in the dehydration tank 2, start the lifting device 20, and the lifting device 20 drives the movable tank 23 to move up and down periodically through the movable rod 22, so that the movable tank 23 enters or leaves the water storage tank periodically, agitates and disperses the water body Sewage flows continuously into the movable tank 23. After the water in the movable tank 23 is full, the movable rod 22 drives the movable tank 23 to move up. During the upward movement of the movable tank 23, the sewage continuously flows out from the through hole at the bottom of the movable tank 23 to form Many linear water columns (water lines) expand the evaporation area. During the flow of the linear water columns, they quickly become water vapor and are sucked away. The activity of the sewage is increased, which further accelerates the evaporation of water.

Example 4:

The difference between this embodiment and embodiment 2 or 3 is:

In order to further accelerate the evaporation rate of water, the movable rod 22 is a hollow structure, and an electric heating tube or an electric heating rod is arranged inside it.

Example 5:

The difference between this embodiment and Embodiment 1-4 is:

In order to further accelerate the evaporation rate of water and make the water fall evenly, an annular pipe is fixed on the inner wall of the dehydration box 3 above the uppermost water tank. Circle spray hole. After hot water enters the annular pipe, it is sprayed into the uppermost water tank from the spray hole. The annular pipe can be one ring or multiple rings concentrically arranged. The annular pipe fully and evenly disperses the hot water at the water outlet 13 to increase its evaporation area and speed up the evaporation rate.

It should be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes not expressly included other elements listed, or also include elements inherent in such a 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 essence of the present utility model all fall within the protection scope of the present utility model.

Claims (8)

1. A sewage low-temperature concentration and separation treatment device, including a high-level storage tank (1) and a processor with sewage, characterized in that: the processor includes a heating box (2), a dehydration box (3), a vacuum pump ( 4), concentrated solution water tank (6); the heating tank (2) is set under the high storage tank (1) and communicated with the high storage tank (1) through the sewage pipe with its own valve one (10); in the heating tank There are multiple heaters (8) inside; the dehydration box (3) is fixed on the side of the heating box (2), and the upper part of the side wall of the dehydration box (3) is provided with an outlet connected to the upper side of the heating box (2). water outlet; multi-layer partitions are installed from top to bottom in the dehydration box (3), and the top first layer of partitions is located below the water outlet; the middle of all odd-numbered-layer partitions and both ends of all even-numbered-layer partitions are provided with For the drains connected to the lower space, the edges of all the drains of the clapboards are provided with overflow weirs that are higher than the upper surface of the clapboard, and the overflow weir and the inner wall of the dehydration tank (3) form a wall that is high on the clapboard and the inner wall is high. low water tank; the vacuum pump (4) is installed on the top of the dehydration tank (3) and used to vacuumize the dehydration tank (3), and the suction end of the vacuum pump (4) communicates with the inside of the top of the dehydration tank (3); the concentrated The liquid water tank (6) is installed at the bottom of the dehydration tank (3) and communicates with the bottom of the dehydration tank (3) through the connecting pipe with its own valve 2 (15); the sewage water inlet forms a liquid seal through the valve 1 and the heating box, and the water outlet Ensure that at least one of valve two or valve three is closed, so that the dehydration tank (3) becomes a closed space, and the sewage flows out from the high-level storage tank (1), and after being heated by the heating tank (2) and dehydrated by the dehydration tank (3), in a vacuum environment Most of them turn into steam and are sucked away by the vacuum pump, and the rest becomes concentrated liquid and flows into the concentrated liquid water tank (6). 2. The low-temperature concentration and quality separation treatment device for sewage according to claim 1, characterized in that: a sewage discharge pipe with a valve three (17) is connected to the bottom of the concentrated solution tank (6). 3. The sewage low-temperature concentration and separation treatment device according to claim 1, characterized in that: the heater (8) is an electric heater, and the heaters are arranged from bottom to top inside the heating box, and the sewage flows from bottom to top. It will rise gradually, and the 1-2 heaters at the top are connected with thermostats. 4. The sewage low-temperature concentration and separation treatment device according to claim 1, characterized in that: the vacuum degree in the dehydration tank (3) is controlled at -75 to -90kpa, and the temperature of the sewage flowing out of the water outlet is less than 100°C. 5. The sewage low-temperature concentration and separation treatment device according to claim 1, characterized in that: the water outlet of the high-level storage tank (1) is higher than the water outlet of the heating tank (2). 6. According to any one of claims 1-5, the sewage low-temperature concentration and separation treatment device is characterized in that: the vacuum pump (4) is a water ring vacuum pump, and the heating box (2) and the dehydration box (3) A circulating water tank (5) is installed on the top to supplement the working fluid for the vacuum pump (4); the circulating water tank (5) is circulated with the vacuum pump (4) through two circulating water pipes, and is connected to the outer bottom of the circulating water tank (5). There is a drain with valve four (19). 7. The sewage low-temperature concentration and quality separation treatment device according to claim 6, characterized in that: the processor also includes a sewage dispersing mechanism placed in the water tank on the surface of the partition and capable of moving up and down. 8. According to claim 7, the sewage low-temperature concentration and quality separation treatment device is characterized in that: the sewage dispersing mechanism includes a lifting device, a support, a movable rod, and a movable groove; the lifting device is installed on the top of the dehydration tank through a support Its telescopic end moves up and down periodically; the movable rod is vertically arranged in the dehydration box, and its upper end penetrates the top of the dehydration box and is fixedly connected with the telescopic end of the lifting device, while its lower end is sequentially arranged from top to bottom. It passes through the drain outlet in the middle of the odd-numbered partitions and the middle of the even-numbered partitions and can move up and down freely; the movable tank is a frame that is placed in the water tank of the even-numbered partitions and sleeved outside the movable rod. The bottom is provided with many through openings, and the middle part of the movable groove is fixed on the movable rod and can move up and down with the movable rod.

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