CN112499711B - Multistage concentration separation processing apparatus of granulation sewage - Google Patents
Multistage concentration separation processing apparatus of granulation sewage Download PDFInfo
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- CN112499711B CN112499711B CN202011321983.0A CN202011321983A CN112499711B CN 112499711 B CN112499711 B CN 112499711B CN 202011321983 A CN202011321983 A CN 202011321983A CN 112499711 B CN112499711 B CN 112499711B
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- 239000010865 sewage Substances 0.000 title claims abstract description 57
- 238000000926 separation method Methods 0.000 title claims abstract description 11
- 238000005469 granulation Methods 0.000 title claims description 4
- 230000003179 granulation Effects 0.000 title claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 74
- 230000018044 dehydration Effects 0.000 claims abstract description 72
- 238000005452 bending Methods 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 21
- 238000009826 distribution Methods 0.000 claims description 15
- 230000001174 ascending effect Effects 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000002309 gasification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a granulating sewage multistage concentration and separation treatment device which comprises a water inlet pipe, a bending conveying assembly, a flat pipe and a dewatering assembly, wherein the bending conveying assembly and the flat pipe are provided with a plurality of same numbers, the bending conveying assemblies are connected in series through the flat pipe, the output port of the last bending conveying assembly is connected with the flat pipe again to serve as a concentrated sewage discharge port, the inlet of the first bending conveying assembly is connected with the water inlet pipe to serve as a sewage inlet port, and the dewatering assembly is respectively arranged in the middle of each bending conveying assembly. The sewage treatment device comprises three sections of bending conveying components, wherein the three sections of bending conveying components are arranged in the middle of the three sections of bending conveying components to dehydrate the sewage, the sewage after three times of dehydration is greatly concentrated, and the dehydration components are used for discharging clean water.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a granulating sewage multistage concentration and separation treatment device.
Background
The granulator is a forming machine which can manufacture materials into granules. Is widely applied to the fields of pharmacy, rubber, plastics and the like. The plastic raw material is prepared into granular raw material in crude oil, and the waste plastic is recycled by firstly melting the waste plastic to produce granular plastic raw material, and then sending the plastic granules as raw material into various extrusion molding machines for new production.
When the plastic granulator is used for production, a large amount of sewage is generated, and the sewage can be discharged after treatment.
Sewage filtration systems only remove suspended matter, but for some components dissolved in water and for their own components which are liquid and flowable, concentration can only be carried out by dewatering, and it is agreed whether the concentrate is to be incinerated for landfill or other treatment measures.
In the prior art, most of the water is removed by heating and evaporating, the dehydration period is long, the dehydration efficiency is limited, and some components are not suitable for heating, so that a dehydration system of a granulating system needs a rapid and efficient concentration and separation treatment device.
Disclosure of Invention
The invention aims to provide a multi-stage concentration and separation treatment device for granulating sewage, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a multistage concentrated separation processing apparatus of granulation sewage, includes inlet tube, buckles conveying assembly, straight pipe, dehydration subassembly, buckles conveying assembly and straight pipe and has a plurality of the same quantity, buckles conveying assembly each other and establishes ties through straight pipe, and the delivery outlet of last section conveying assembly of buckling connects a straight pipe again and regard as concentrated sewage discharge mouth, and the inlet connection inlet tube of first section conveying assembly of buckling is as the sewage inlet port, and every section conveying assembly of buckling sets up dehydration subassembly in its middle part respectively. The sewage treatment device comprises three sections of bending conveying components, wherein the three sections of bending conveying components are arranged in the middle of the three sections of bending conveying components to dehydrate the sewage, the sewage after three times of dehydration is greatly concentrated, and the dehydration components are used for discharging clean water.
Further, the bending conveying component comprises an ascending section, a descending section, a dewatering cavity and a conveying pump, wherein the ascending section and the descending section are vertically arranged in parallel, the upper ends of the ascending section and the descending section are both connected with the bottom of the dewatering cavity, the conveying pump is arranged on the descending section, the pressurizing of the conveying pump for the overcurrent substances is equal to the flow loss in the bending conveying component, the dewatering cavity is in a negative pressure state, the bottom of the ascending section of the first bending conveying component is connected with a water inlet pipe,
the dehydration component comprises an air suction pipe and an air suction pump, one end of the air suction pipe is connected to the top surface of the inner wall of the dehydration cavity, and the other end of the air suction pipe is connected with the air suction pump, and the air suction pump sucks the air in the space above the dehydration cavity.
The dehydration is carried out in a vacuum dehydration mode, sewage to be concentrated in each bending conveying assembly firstly enters the ascending section, the ascending process is that the pressure in the dehydration cavity at the top end is lowest because the pressure is gradually reduced, the pressure at the moment is lower than the saturated vapor pressure of the sewage, the moisture on the surface of the sewage begins to vaporize and is separated from the liquid component, the dehydration purpose is achieved, the sewage stays in the dehydration cavity for a while, namely flows away from the descending section, therefore, the multi-section bending conveying assembly is connected in series to achieve the multi-time dehydration purpose, the multi-time dehydration and multi-time concentration are carried out, the concentrated sewage is finally obtained, and the water discharged by the air pump is clean water and can be used elsewhere.
Further, the dehydration assembly further comprises a heat exchange tube, the heat exchange tube is connected with an air pump outlet, the main body part of the heat exchange tube is arranged in the descending section or a straight tube connected with the descending section, and a pressure regulating valve is arranged at the position of the heat exchange tube outlet.
When the air pump sucks air from the dehydration cavity through the air suction pipe, the air is continuously gasified by liquid moisture and supplemented with air, a large amount of heat is required to be absorbed in the water gasification process, and the heat is derived from the liquid component, so that the liquid flowing downwards from the descending section after passing through the dehydration cavity can be cooled, after the temperature is reduced, the lower pressure is required in the next bending conveying component to reach the vaporization pressure, the air suction pump with higher power is required, the dehydration effect can be reduced, the sucked gaseous water can be compressed and condensed in the heat exchange pipe after the heat exchange pipe and the pressure regulating valve are added, the heat released in the condensation process is used for heating the cooled sewage, the sewage is heated again, the higher water gasification pressure is provided in the next bending conveying component, the power of the air suction pump on the next bending conveying component is not required to be improved, and the vacuum dehydration mode is still carried out with higher efficiency.
Further, the dehydration component is also arranged in series, and the heat exchange tube of the front section and the air extraction tube of the rear section are converged and then sent to the air extraction pump of the rear section.
The water separated from the collecting flow can fully recover heat, and the water is dehydrated in a grading manner, so that the dehydration amount of the dehydration cavity of the first stage is larger than that of the subsequent water, after the water separated from the first stage is compressed in the heat exchange tube for heat exchange, the heat exchange is possibly insufficient, more heat remains in the clean water, the water separated from the previous step can continuously flow to the later heat exchange position through the dehydration assembly after collecting flow, on the whole heat transfer balance, only the sewage discharged by the bending conveying assembly of the last stage is not heated, only the water vapor discharged by the dehydration assembly of the last stage is not compressed for heating the sewage, and no heat is lost in the previous step, so that the dehydration is sufficient, and the suction pressure of the suction pump is basically the water saturation vapor pressure corresponding to the inflow temperature of the sewage.
Further, the dehydration component further comprises a barostat, the barostat is arranged at the serial position of the two adjacent dehydration components, and the barostat is used for reducing the high-pressure liquid discharged from the tail end of the front section heat exchange tube to the pumping pressure of the pumping tube of the section.
The high-pressure liquid discharged by the heat exchange tube is mixed into the exhaust tube of the next section because the heat recovery amount is required to be increased by converging, but the exhaust pressure of the exhaust tube of the next section is uncertain, and the pressure regulating valve of the last section can only regulate the self fixed flow resistance and can not achieve the effect of automatically adapting the pressure, so that a constant pressure device is required to be added at the connecting position to automatically allocate the difference value between the outflow pressure of the pressure regulating valve and the exhaust pressure of the exhaust tube of the next section.
Further, the barostat comprises a pressure distribution shell and a duplex ball, wherein one end of the pressure distribution shell is connected with the outlet of the heat exchange tube, the other end of the pressure distribution shell is connected with the exhaust tube of the lower section, an inclined plane choke is arranged in the pressure distribution shell, the duplex ball comprises a connecting rod and balls arranged at two ends of the connecting rod, the balls at the lower end of the connecting rod float on the liquid surface of the dehydration cavity, the connecting rod sequentially penetrates through the dehydration cavity and the lower wall surface of the pressure distribution shell, and the balls at the upper end of the connecting rod are positioned below the choke.
The upper end sphere of the duplex ball rises to block a part of the choke, so that the flow resistance is improved.
Further, the exhaust pipe is provided with a backflow preventing structure, the backflow preventing structure is a bending pipe which is ascended and descended, and the bottom of the bending pipe is respectively connected with the dewatering cavity and the main pipeline of the exhaust pipe.
Because the water that breaks away from converges, the last festival is liquid water, and direct advection comes and can flow into the dehydration chamber again, so, the gas can only let through to the one section pipe constitution that bends prevents flowing backwards structure.
Further, the processing device further comprises a temporary storage bin, and the temporary storage bin is connected with the tail section flat and straight pipe. The temporary storage bin is used for temporary storage of concentrated sewage.
Compared with the prior art, the invention has the following beneficial effects: the newly entered sewage enters from the water inlet pipe, rises in the first bending conveying component and reduces the pressure, the vaporization pressure reaches the current temperature in the dehydration cavity, the vaporized water is compressed into liquid heat release after being pumped away by the air pump, the released heat returns the sewage to be further concentrated through the heat exchange pipe, so that the vacuum degree required by the next section of dehydration is reduced, and the concentrated sewage is stored in the temporary storage bin after the step-by-step vacuum dehydration; vacuum dehydration is continuous and efficient.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall flow structure of the present invention;
FIG. 2 is a schematic illustration of a bending conveyor assembly structure and connection according to the present invention;
FIG. 3 is a schematic diagram of the series configuration of the dewatering module of the present invention;
FIG. 4 is a schematic diagram of a single stage dehydration of the present invention;
fig. 5 is a view a in fig. 1.
In the figure: 1-water inlet pipe, 2-bending conveying component, 21-ascending section, 22-descending section, 23-dehydration cavity, 24-conveying pump, 3-flat pipe, 4-dehydration component, 41-exhaust pipe, 42-exhaust pump, 43-heat exchange pipe, 44-pressure regulating valve, 45-barostat, 451-pressure distributing shell, 452-duplex ball, 46-backflow preventing structure and 5-temporary storage bin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the granulating sewage multistage concentration and separation treatment device comprises a water inlet pipe 1, a bending conveying component 2, straight pipes 3 and a dewatering component 4, wherein the bending conveying component 2 and the straight pipes 3 are provided with a plurality of same numbers, the bending conveying components 2 are mutually connected in series through the straight pipes 3, the output port of the tail bending conveying component 2 is connected with the straight pipe 3 again to serve as a concentrated sewage discharge port, the inlet of the first bending conveying component 2 is connected with the water inlet pipe 1 to serve as a sewage inlet port, and the dewatering component 4 is arranged at the middle part of each bending conveying component 2. As shown in fig. 1, there are three sections of bending conveying components 2, the three sections of bending conveying components 2 are dehydrated by a dehydrating component 4 arranged in the middle of the three sections of bending conveying components 2, sewage is greatly concentrated after three times of dehydration, and the dehydrating component 4 discharges clean water.
As shown in fig. 2, the bending and conveying assembly 2 comprises an ascending section 21, a descending section 22, a dewatering cavity 23 and a conveying pump 24, wherein the ascending section 21 and the descending section 22 are vertically arranged in parallel, the upper ends of the ascending section 21 and the descending section 22 are both connected with the bottom of the dewatering cavity 23, the conveying pump 24 is arranged on the descending section 22, the pressurizing of the conveying pump 24 for the overcurrent substances is equal to the flow loss in the bending and conveying assembly 2, the dewatering cavity 23 is in a negative pressure state, the bottom of the ascending section of the first bending and conveying assembly 2 is connected with the water inlet pipe 1,
as shown in fig. 3 and 4, the dewatering module 4 includes a suction pipe 41 and a suction pump 42, wherein one end of the suction pipe 41 is connected to the top surface of the inner wall of the dewatering chamber 23, and one end of the suction pipe is connected to the suction pump 42, and the suction pump 42 sucks the gas in the upper space of the dewatering chamber 23.
The dehydration is carried out in a vacuum dehydration mode, sewage to be concentrated in each section of bending conveying assembly 2 firstly enters the rising section 21, the rising process is carried out because the pressure is gradually reduced, the pressure in the dehydration cavity 23 at the top end is the lowest, the pressure at the moment is lower than the saturated vapor pressure of the sewage, the moisture on the surface of the sewage begins to vaporize and is separated from liquid components, the dehydration purpose is achieved, the sewage stays in the dehydration cavity 23 for a while, namely flows away from the descending section 22, therefore, the multiple dehydration purpose is achieved in a mode that the bending conveying assemblies 2 are connected in series, multiple times of dehydration and multiple times of concentration are carried out, finally concentrated sewage is obtained, and the water discharged by the air pump 42 is clean water and can be used elsewhere.
As shown in fig. 4, the dewatering assembly 4 further includes a heat exchange tube 43, the heat exchange tube 43 is connected to an outlet of the air pump 42, a main body portion of the heat exchange tube 43 is disposed in the descending section 22 or in the straight tube 3 connected to the descending section 22, and a pressure regulating valve 44 is disposed at an outlet of the heat exchange tube 43.
When the air pump 42 sucks air from the dehydration cavity 23 through the air suction pipe 41, the air is continuously gasified by liquid moisture, the water gasification process needs to absorb a large amount of heat, and the heat is from the liquid component, so that the liquid flowing downwards from the descending section 22 after passing through the dehydration cavity 23 can be cooled, after the temperature is reduced, the lower pressure is needed in the next bending conveying component 2 to reach the gasification pressure, the air pump 42 with higher power is needed, the dehydration effect is reduced, after the heat exchange pipe 43 and the pressure regulating valve 44 are added, the sucked gaseous water can be condensed in the heat exchange pipe 43, the heat released in the condensation process is used as the sewage after heating and cooling, the sewage is heated again, the water gasification pressure in the next bending conveying component 2 is higher, the power of the air pump 42 on the next section is not increased, and the vacuum dehydration mode is still performed with higher efficiency.
As shown in fig. 3, the dewatering modules 4 are also arranged in series, and the heat exchange tubes 43 of the front section are converged with the air extraction tubes 41 of the rear section and then sent to the air extraction pump 42 of the rear section.
The water separated from the previous step can fully recover heat, because of the step dehydration process, the dehydration amount of the dehydration cavity 23 of the first stage is larger than that of the subsequent step, after the water separated from the first stage is compressed in the heat exchange tube 45 for heat exchange, possibly insufficient heat is remained in the clean water, the water separated from the previous step can continuously flow to the subsequent heat exchange position by the dehydration assembly 4 after the step is summarized, on the whole heat transfer balance, only the sewage discharged by the bending conveying assembly 2 of the last section is not heated, only the water vapor discharged by the dehydration assembly 4 of the last section is not compressed for heating the sewage, and no heat is lost in the previous step, so that the dehydration is sufficient, and the suction pressure of the suction pump 42 is basically the water saturation vapor pressure corresponding to the inflow temperature of the sewage.
As shown in fig. 3 and 5, the dewatering modules 4 further include a barostat 45, wherein the barostat 45 is installed at a serial position of two adjacent dewatering modules 4, and the barostat 45 is used for reducing the high-pressure liquid discharged from the end of the front section heat exchange tube 43 to the suction pressure of the suction tube 41 of the present section.
As shown in fig. 5, since the heat recovery amount needs to be increased by confluence, the high-pressure liquid discharged from the heat exchange tube is mixed into the next section of the exhaust tube 41, but the exhaust pressure of the next section of the exhaust tube 41 is not determined, and the upper section of the pressure regulating valve 43 can only regulate the self-fixed flow resistance, and the effect of automatically adapting the pressure cannot be achieved, so that a constant pressure device 45 needs to be added at the connecting position to automatically allocate the difference between the outflow pressure of the heat exchange tube 43 from the pressure regulating valve 44 and the exhaust pressure of the next section of the exhaust tube 41.
As shown in fig. 5, the barostat 45 includes a pressure distribution shell 451 and a duplex ball 452, one end of the pressure distribution shell 451 is connected with the outlet of the heat exchange tube 43, the other end is connected with the lower section exhaust tube 41, an inclined plane choke is arranged in the pressure distribution shell 451, the duplex ball 452 includes a connecting rod and balls arranged at two ends of the connecting rod, the balls at the lower end of the connecting rod float on the liquid surface of the dehydration cavity 23, the connecting rod sequentially passes through the dehydration cavity 23 and the lower wall surface of the pressure distribution shell 451, and the balls at the upper end of the connecting rod are positioned below the choke.
The duplex ball 452 is lifted according to the water level in the dewatering cavity 23, the overflow area of the choke in the pressure distribution shell 451 is changed when the upper ball is lifted, so that the overflow resistance is changed, when the water level in the dewatering cavity 23 is higher, the upper pressure of the dewatering cavity 23 is lower, at the moment, the water pressure discharged by the upper heat exchange tube 43 needs to have larger pressure drop, and the upper ball of the duplex ball 452 ascends to block a part of the choke, so that the overflow resistance is improved.
As shown in fig. 5, the exhaust pipe 41 is provided with a backflow preventing structure 46, the backflow preventing structure 46 is a first-up and second-down bent pipe, and the bottom of the bent pipe is respectively connected with the dewatering cavity 23 and the main path of the exhaust pipe 41.
Because the separated water is converged, the upper section is liquid water, and the water directly flows horizontally to flow into the dewatering cavity 23 again, so that the gas can only pass through the backflow preventing structure formed by a section of bending pipe.
As shown in fig. 1, the treatment device further comprises a temporary storage bin 5, and the temporary storage bin 5 is connected with the end section flat pipe 3. The temporary storage bin 5 serves as a temporary storage for the concentrated sewage.
The working principle of the invention is as follows: the newly entered sewage enters from the water inlet pipe, rises in the first bending conveying component 2 and reduces in pressure, the vaporization pressure reaching the current temperature in the dehydration cavity 23 is reduced in vacuum dehydration, the vaporized water is pumped away by the air pump 42 and then compressed into liquid heat release, the released heat returns to the sewage to be further concentrated through the heat exchange pipe 43, so that the vacuum degree required by the next section of dehydration is reduced, and the concentrated sewage is stored in the temporary storage bin 5 after the step-by-step vacuum dehydration.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a multistage concentrated separation processing apparatus of granulation sewage which characterized in that: the treatment device comprises a water inlet pipe (1), a bending conveying assembly (2), a straight pipe (3) and a dewatering assembly (4), wherein the bending conveying assembly (2) and the straight pipe (3) are provided with a plurality of same numbers, the bending conveying assemblies (2) are connected in series through the straight pipe (3), the output port of the tail bending conveying assembly (2) is connected with the straight pipe (3) again to serve as a concentrated sewage discharge port, the inlet of the first bending conveying assembly (2) is connected with the water inlet pipe (1) to serve as a sewage inlet port, and the dewatering assemblies (4) are respectively arranged at the middle parts of the bending conveying assemblies (2);
the bending conveying assembly (2) comprises an ascending section (21), a descending section (22), a dewatering cavity (23) and a conveying pump (24), wherein the ascending section (21) and the descending section (22) are vertically arranged in parallel, the upper ends of the ascending section (21) and the descending section (22) are both connected with the bottom of the dewatering cavity (23), the conveying pump (24) is arranged on the descending section (22), the pressurizing of the conveying pump (24) to the overcurrent substances is equal to the flow loss in the bending conveying assembly (2), the dewatering cavity (23) is in a negative pressure state, the bottom of the ascending section of the first bending conveying assembly (2) is connected with the water inlet pipe (1),
the dehydration assembly (4) comprises an air suction pipe (41) and an air suction pump (42), one end of the air suction pipe (41) is connected to the top surface of the inner wall of the dehydration cavity (23), and the other end of the air suction pipe is connected with the air suction pump (42), and the air suction pump (42) sucks air in the upper space of the dehydration cavity (23);
the dehydration assembly (4) further comprises a heat exchange tube (43), the heat exchange tube (43) is connected with the outlet of the air pump (42), the main body part of the heat exchange tube (43) is arranged in the descending section (22) or the straight tube (3) connected with the descending section (22), and a pressure regulating valve (44) is arranged at the outlet of the heat exchange tube (43);
the dehydration component (4) is also arranged in series, and the heat exchange tube (43) of the front section is converged with the air extraction tube (41) of the rear section and then sent to the air extraction pump (42) of the rear section;
the dewatering components (4) further comprise a barostat (45), the barostat (45) is arranged at the serial position of two adjacent dewatering components (4), and the barostat (45) is used for reducing the high-pressure liquid discharged from the tail end of the front section heat exchange tube (43) to the pumping pressure of the pumping tube (41) of the section;
the constant pressure device is characterized in that the constant pressure device (45) comprises a pressure distribution shell (451) and a duplex ball (452), one end of the pressure distribution shell (451) is connected with an outlet of the heat exchange tube (43), the other end of the pressure distribution shell is connected with a lower section exhaust tube (41), an inclined plane choke is arranged in the pressure distribution shell (451), the duplex ball (452) comprises a connecting rod and balls arranged at two ends of the connecting rod, the balls at the lower end of the connecting rod float on the surface of liquid in the dehydration cavity (23), the connecting rod sequentially penetrates through the dehydration cavity (23) and the lower wall surface of the pressure distribution shell (451), and the balls at the upper end of the connecting rod are located below the choke.
2. The multi-stage concentration and separation treatment device for granulating sewage according to claim 1, wherein: the exhaust pipe (41) is provided with a backflow preventing structure (46), the backflow preventing structure (46) is a first-up and second-down bent pipe, and the bottom of the bent pipe is respectively connected with the dehydration cavity (23) and the main path of the exhaust pipe (41).
3. The multi-stage concentration and separation treatment device for granulating sewage according to claim 1, wherein: the treatment device further comprises a temporary storage bin (5), and the temporary storage bin (5) is connected with the tail section flat and straight pipe (3).
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| CN202011321983.0A CN112499711B (en) | 2020-11-23 | 2020-11-23 | Multistage concentration separation processing apparatus of granulation sewage |
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| CN202011321983.0A CN112499711B (en) | 2020-11-23 | 2020-11-23 | Multistage concentration separation processing apparatus of granulation sewage |
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| CN112499711B true CN112499711B (en) | 2023-08-11 |
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Application publication date: 20210316 Assignee: Yancheng Dafeng Hailong Plastics Co.,Ltd. Assignor: YANCHENG BEIDI PLASTIC INDUSTRY Co.,Ltd. Contract record no.: X2023980052237 Denomination of invention: A multi-stage concentration and separation device for granulation wastewater treatment Granted publication date: 20230811 License type: Common License Record date: 20231214 |
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