CN219621062U

CN219621062U - Multistage concentration processing apparatus of vacuum sludge drying waste water

Info

Publication number: CN219621062U
Application number: CN202321168669.2U
Authority: CN
Inventors: 燕菲霏; 沈昊天; 韩元昊; 席永丰
Original assignee: Zhejiang Zhongqian Hualian Environmental Protection Technology Co ltd
Current assignee: Zhejiang Zhongqian Hualian Environmental Protection Technology Co ltd
Priority date: 2023-05-13
Filing date: 2023-05-13
Publication date: 2023-09-01
Anticipated expiration: 2033-05-13

Abstract

The utility model relates to the field of sludge drying wastewater treatment, in particular to a multistage concentration treatment device for vacuum sludge drying wastewater, which comprises the following components: the device comprises a vacuum steam condensate chamber, a fine treatment water chamber, a condensation water chamber, an ammonia tank and a vacuum pump, wherein a primary air condenser is arranged at the upper end of the vacuum steam condensate chamber, the vacuum steam condensate chamber is connected with the fine treatment water chamber through a pipeline, a tube array heater is arranged in the fine treatment water chamber, the fine treatment water chamber is connected with the upper end of the condensation water chamber, a secondary condenser is arranged in the condensation water chamber, the condensation water chamber is connected with the ammonia tank through a pipeline, and the vacuum pump is connected with the vacuum steam condensate chamber and the condensation water chamber through a pipeline. The utility model adopts a full-sealing system, and the leakage of the system is small; the high-temperature tail gas is treated by the waste gas washing tower, so that the waste gas discharge capacity is small; the concentrated oil stain can be further extracted and separated to obtain partial oil products, so that the recycling is realized.

Description

Multistage concentration processing apparatus of vacuum sludge drying waste water

Technical Field

The utility model relates to the field of sludge drying wastewater treatment, and relates to a multistage concentration treatment device for vacuum sludge drying wastewater.

Background

As the national regulations relating to sludge disposal become more and more complete, more and more enterprises have selected sludge reduction disposal systems. Currently, the reduction treatment mainly adopts an evaporation-dehumidification cycle to remove water in the sludge, and the main working temperature is between 40 and 110 ℃. Under the condition of the temperature field, a large amount of ammonia nitrogen, hydrogen sulfide and other pollution factors are captured in the condensed wastewater in the dehumidification stage. And because the drying equipment is usually provided with a first-stage dust removal device before the dehumidification and condensation link, the carbon nitrogen ratio in the condensed wastewater is very small, the PH is very high, and the rear sewage treatment process is not facilitated.

Disclosure of Invention

The utility model provides a multistage concentration treatment device for vacuum sludge drying wastewater, which solves the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme: a multi-stage concentration treatment device for vacuum sludge drying wastewater comprises: the device comprises a vacuum condensate chamber, a refined water chamber, a condensate chamber, an ammonia tank and a vacuum pump, wherein a primary condensate is arranged at the upper end of the vacuum condensate chamber, a saturated water chamber and a supercooled water chamber are arranged at the lower end of the vacuum condensate chamber from left to right, a coil heater is arranged in the saturated water chamber, a coil condenser is arranged in the supercooled water chamber, a saturated water chamber pipeline is connected with a saturated drain pump, the supercooled water chamber is connected with the refined water chamber pipeline and is provided with a supercooled water chamber drain pump, a tube heater is arranged in the refined water chamber, the refined water chamber is connected with the upper end of the condensate chamber, a secondary condenser is arranged in the condensate chamber, a circulating drain pump is arranged in the condensate chamber and is connected with the ammonia tank through a pipeline, and the vacuum condensate chamber is connected with the condensate chamber pipeline.

Further improvement, the finishing water chamber is internally provided with a multi-component process baffle plate.

Further improvement, be provided with the shower first in the vacuum condensing chamber, the shower first sets up the supercooling hydroecium top, the shower first with supercooling hydroecium drain pump pipe connection.

Further improvement, a spray pipe II is arranged in the condensation water chamber, the spray pipe II is arranged above the secondary condenser, and the spray pipe II is connected with the circulating drain pump pipeline.

Further improvement, the ammonia tank pipeline is connected with an exhaust gas washing tower, and the exhaust gas washing tower is connected with the vacuum pump pipeline.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model adopts a full-sealing system, and the leakage of the system is small; the dry tail gas mainly comprises oil components, water, noncondensable gas and the like, and after the high-temperature tail gas is treated by the waste gas washing tower, the vacuum extraction mainly comprises the noncondensable gas, so that the waste gas discharge capacity is small;

2. the spray water of the vacuum steam condensate chamber and the condensation water chamber is cooling water condensed by the dry tail gas and is continuously recycled, so that the wastewater discharge is mainly water evaporated from the oil-containing sludge, and the wastewater discharge is small;

3. the whole system is in a lower vacuum state through the vacuum pump, free ammonia and water are easy to volatilize at the same temperature, the taste of a heat source is reduced, the waste heat of the drier is utilized, and the energy consumption is reduced;

4. the dry sludge has higher heat value and can be used as solid fuel, and the ammonia component obtained by concentration can obtain ammonia water with higher concentration through two-stage absorption concentration, so that the recycling is realized, the sewage treatment cost is reduced, the secondary utilization is performed, and the economic benefit is increased.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged view of the portion a of fig. 1 in accordance with the present utility model.

In the figure, 1, a vacuum steam condensate chamber; 11. a primary condenser; 12. a saturated water chamber; 121. a coil heater; 122. a saturated drain pump; 13. supercooling water chamber; 131. a coiled tube condenser; 132. a supercooling water chamber drain pump; 14. a first spray pipe; 2. a finishing water chamber; 21. a tube array heater; 22. a separation baffle; 3. a condensation chamber; 31. a secondary condenser; 32. a circulating drain pump; 33. a second spray pipe; 4. an ammonia tank; 5. a vacuum pump; 6. an exhaust gas scrubber.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further described below with reference to the examples and the accompanying figures 1-2.

Example 1

The utility model provides a multistage concentrated processing apparatus of vacuum sludge drying waste water which characterized in that includes: the novel high-temperature air conditioner comprises a vacuum condensate chamber 1, a finishing water chamber 2, a condensation water chamber 3, an ammonia tank 4 and a vacuum pump 5, wherein a primary condensate 11 is arranged at the upper end of the vacuum condensate chamber 1, a saturated water chamber 12 and a supercooling water chamber 13 are arranged at the lower end of the vacuum condensate chamber 1 from left to right, a coil heater 121 is arranged in the saturated water chamber 12, a coil condenser 131 is arranged in the supercooling water chamber 13, a saturated water chamber 12 pipeline is connected with a saturated drain pump 122, the supercooling water chamber 13 and the finishing water chamber 2 are connected with a supercooling water chamber drain pump 132, a column heater 21 is arranged in the finishing water chamber 2, the finishing water chamber 2 and the upper end of the condensation water chamber 3 are connected and arranged, a secondary condenser 31 is arranged in the condensation water chamber 3, a pipeline connection between the condensation water chamber 3 and the ammonia tank 4 is provided with a circulating drain pump 32, and the vacuum pump 5 and the vacuum condensate chamber 1 and the condensation water chamber 3 are connected with a pipeline.

As shown in fig. 1-2, the wet steam and ammonia nitrogen gas discharged from the vacuum sludge dryer enter the vacuum condensate chamber 1 with high vacuum, the wet steam falls into the lower water chamber in an unsaturated state after being condensed by the primary condensate 11, and the ammonia nitrogen gas is absorbed into the water body for the first time, and the lower water chamber is divided into a saturated water chamber 12 and a supercooled water chamber 13, which are separated by a baffle plate and isolate heat. A coil heater 121 which is the same heat source as the drier is arranged in the saturated water chamber 12, and the unsaturated water body in the water chamber is reheated to a saturated state, so that free ammonia in the water body is separated out again; the coil condenser 131 arranged in the supercooling water chamber 13 improves the unsaturation degree of the water body in the supercooling water chamber, so that the solubility of the gaseous ammonia in the water body is increased, and the gaseous ammonia dissociated in the vacuum steam condensate chamber 1 is absorbed.

The condensed water in the saturated water chamber 12 is discharged to a clean water tank or a drain outlet of a nano tube of a factory sewage station through a drain pump 122, and the concentrated high ammonia nitrogen wastewater in the supercooled water chamber 13 flows into the closed ammonia nitrogen fine treatment water chamber 2 through a supercooled water chamber drain pump 132. The fine treatment water chamber 2 is of a full-sealed design, an initial vacuum degree lower than that of the vacuum steam condensation chamber 1 is established through the vacuum pump 5, a group of tube array heaters 21 are arranged in the fine treatment water chamber, concentrated high ammonia nitrogen wastewater is heated to a critical saturated state, ammonia nitrogen is continuously separated out and moves to the right condensation water chamber 3, water vapor is condensed and vacuum is maintained through the secondary condenser 31, and the secondary concentrated and absorbed high ammonia nitrogen wastewater is transferred to the ammonia tank 4 through the circulating drain pump 32.

As a further preferred embodiment, the finishing water chamber 2 is internally provided with a multi-component process barrier 23.

Specifically, the ammonia nitrogen wastewater in the refined water chamber 2 is heated to a critical saturation state by the separation plate 23, and ammonia nitrogen is continuously separated out and gradually moves to the right condensation water chamber 3 along with the change of solubility.

As a further preferred embodiment, a first spray pipe 14 is disposed in the vacuum steam trap 1, the first spray pipe 14 is disposed above the supercooling water chamber 122, and the first spray pipe 14 is in pipeline connection with the supercooling water chamber drain pump 21.

Specifically, the first spraying pipe 13 is used for circularly spraying, so that the gaseous ammonia precipitated in the saturated water chamber 12 is captured.

As a further preferred embodiment, a second spray pipe 33 is disposed in the condensation chamber 3, the second spray pipe 33 is disposed above the secondary condenser 31, and the second spray pipe 33 is in pipeline connection with the circulating drain pump 32.

Specifically, the second spraying pipe 33 is used for absorbing ammonia nitrogen gas in the condensation chamber 3.

As a further preferred embodiment, the ammonia tank 4 is connected with an exhaust gas scrubber 6 through a pipeline, and the exhaust gas scrubber 6 is connected with the vacuum pump 5 through a pipeline.

Specifically, the redundant gas and the exhaust gas of the vacuum pump are treated by the waste gas washing tower 6 according to the subsequent standard, so that the atmospheric pollution is reduced.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The utility model provides a multistage concentrated processing apparatus of vacuum sludge drying waste water which characterized in that includes: the device comprises a vacuum condensate chamber, a refined water chamber, a condensate chamber, an ammonia tank and a vacuum pump, wherein a primary condensate is arranged at the upper end of the vacuum condensate chamber, a saturated water chamber and a supercooled water chamber are arranged at the lower end of the vacuum condensate chamber from left to right, a coil heater is arranged in the saturated water chamber, a coil condenser is arranged in the supercooled water chamber, a saturated water chamber pipeline is connected with a saturated drain pump, the supercooled water chamber is connected with the refined water chamber pipeline and is provided with a supercooled water chamber drain pump, a tube heater is arranged in the refined water chamber, the refined water chamber is connected with the upper end of the condensate chamber, a secondary condenser is arranged in the condensate chamber, a circulating drain pump is arranged in the condensate chamber and is connected with the ammonia tank through a pipeline, and the vacuum condensate chamber is connected with the condensate chamber pipeline.

2. The multistage concentration treatment device for vacuum sludge drying wastewater according to claim 1, wherein a multi-component process partition plate is arranged in the fine treatment water chamber.

3. The multistage concentration treatment device for vacuum sludge drying wastewater according to claim 1, wherein a first spray pipe is arranged in the vacuum condensing chamber and is arranged above the supercooling water chamber, and the first spray pipe is connected with a drain pump pipeline of the supercooling water chamber.

4. The multistage concentration treatment device for vacuum sludge drying wastewater according to claim 1, wherein a spray pipe II is arranged in the condensation water chamber, the spray pipe II is arranged above the secondary condenser, and the spray pipe II is connected with the circulating drain pump pipeline.

5. The multistage concentration treatment device for vacuum sludge drying wastewater according to claim 1, wherein the ammonia tank pipeline is connected with an exhaust gas washing tower, and the exhaust gas washing tower is connected with the vacuum pump pipeline.