Cigarette factory sewage treatment system

Abstract

The utility model discloses a sewage treatment system for a cigarette factory. The sewage treatment system comprises a first return pipeline, a flushing pipeline and a control unit, a water collecting tank, an adjusting tank, a coagulating tank, a first-section sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a second-section sedimentation tank are sequentially arranged in the primary sewage treatment section for sewage treatment; the first backflow pipeline is arranged between the contact oxidation pond and the first-section sedimentation pond, and the first backflow pipeline is provided with the control unit so as to control sewage to flow back into the first-section sedimentation pond to be recycled when the sewage in the contact oxidation pond does not reach the treatment standard; the contact oxidation tank and the second-section sedimentation tank are both provided with temporary pipelines which are communicated with the flushing pipeline, so that sewage subjected to primary treatment is used for cleaning and greening water. The system can improve the sewage utilization rate of factories and enterprises and reduce the environmental pressure of cities.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically, to a sewage treatment system for a cigarette factory. Background Art

[0002] Industrial wastewater is generated during the daily production and staff life in a cigarette factory. To meet the need of building an environment-friendly enterprise, more and more industrial enterprises choose to set up a sewage treatment system within the enterprise. At present, after the sewage treatment system treats all the sewage in the factory area through the whole process and reaches the secondary reuse standard, the sewage is directly discharged into the municipal pipe network, which will cause waste of water resources. Therefore, how to utilize or recycle the treated sewage to reduce the environmental pressure on the city is of great significance. Content of the Utility Model

[0003] The utility model provides a sewage treatment system for a cigarette factory, which solves the problem that the industrial wastewater in the existing cigarette factory is discharged into the municipal pipe network after treatment, lacking effective utilization of the sewage and being prone to cause waste of water resources, and can improve the sewage utilization rate of the factory enterprise and reduce the environmental pressure on the city.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A sewage treatment system for a cigarette factory includes: a first return pipeline, a flushing pipeline and a control unit;

[0006] A collecting tank, an adjusting tank, a coagulation tank, a first sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a second sedimentation tank are sequentially arranged in the primary sewage treatment section for primary sewage treatment;

[0007] The first return pipeline is arranged between the contact oxidation tank and the first sedimentation tank, and the control unit is arranged on the first return pipeline to control the sewage to flow back into the first sedimentation tank for recycling when the sewage in the contact oxidation tank does not reach the treatment standard;

[0008] Both the contact oxidation tank and the second sedimentation tank are provided with temporary pipelines communicating with the flushing pipeline to use the primary treated sewage for cleaning and greening water.

[0009] Preferably, it further includes: a second return pipeline;

[0010] The second return pipeline is arranged between the first sedimentation tank and the adjusting tank, and the control unit is arranged on the second return pipeline to control the sewage to flow back into the adjusting tank for recycling during maintenance.

[0011] Preferably, a sewage advanced treatment section is set, and the sewage advanced treatment section includes a flotation de-sludging tank, a transfer water tank and a clear water tank arranged in sequence.

[0012] Preferably, a filtering device is arranged between the transfer water tank and the clean water tank to filter the treated water in the transfer water tank and then flow it into the clean water tank.

[0013] Preferably, the filtering device includes: a disk filter, a multi-media filter, and an activated carbon filter.

[0014] Preferably, a slag scraping device is provided on the air flotation and slag removal tank to scrape the floating slag in the air flotation and slag removal tank.

[0015] Preferably, the control unit includes: a water pump, a control valve group, and a controller;

[0016] The controller is respectively signal-connected to the water pump and the control valve group, and controls the operation of the water pump and the conduction or disconnection of the control valve group according to a control instruction.

[0017] Preferably, the control unit further includes: a display screen;

[0018] A sewage treatment APP operation interface is provided on the display screen, and the display screen is signal-connected to the controller;

[0019] An operator sends a control instruction to the controller through the sewage treatment APP operation interface.

[0020] Preferably, it further includes: an alarm device;

[0021] The alarm device is signal-connected to the controller, and the controller controls the alarm device to give an alarm when a failure occurs in the water pump or the control valve group.

[0022] Preferably, the controller is a microprocessor or a PLC programmable controller.

[0023] The present utility model provides a sewage treatment system for a cigarette factory, which sequentially arranges a collecting tank, an adjusting tank, a coagulation tank, a first sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, and a second sedimentation tank in the primary sewage treatment section to perform sewage treatment, and arranges a first return pipeline between the contact oxidation tank and the adjusting tank to adjust the sewage circulation. Temporary pipelines are provided in both the contact oxidation tank and the second sedimentation tank and are connected to the flushing pipeline to use the sewage after primary treatment for cleaning and greening water. It solves the problem that the industrial wastewater in the existing cigarette factory is discharged into the municipal pipe network after treatment, lacks effective utilization of sewage, and is prone to cause waste of water resources, can improve the sewage utilization rate of factory enterprises, and reduce the environmental pressure on the city. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below.

[0025] Figure 1 It is a schematic diagram of a sewage treatment system for a cigarette factory provided by the present utility model. Specific embodiments

[0026] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present utility model, the following further details the embodiments of the present utility model in conjunction with the drawings and embodiments.

[0027] Aiming at the problem that the sewage treatment system in the current cigarette factory needs to directly discharge sewage into the municipal pipe network during shutdown, maintenance and operation, which is likely to cause waste of water resources. The present utility model provides a sewage treatment system for a cigarette factory to solve the problem that after the industrial wastewater in the existing cigarette factory is treated and discharged into the municipal pipe network, there is a lack of effective utilization of sewage and it is likely to cause waste of water resources, and it can improve the sewage utilization rate of factory enterprises and reduce the environmental pressure on the city.

[0028] As Figure 1 shown, a sewage treatment system for a cigarette factory includes: a first return pipeline 1, a flushing pipeline 3 and a control unit (not shown in the figure). A collecting tank, an adjusting tank, a coagulation tank, a first sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a second sedimentation tank are sequentially arranged in the primary sewage treatment section to perform primary sewage treatment. The first return pipeline 1 is arranged between the contact oxidation tank and the first sedimentation tank, and the control unit is provided on the first return pipeline 1 to control the sewage to flow back into the first sedimentation tank for recirculation when the sewage in the contact oxidation tank does not reach the treatment standard. Both the contact oxidation tank and the second sedimentation tank are provided with temporary pipelines communicating with the flushing pipeline to use the primary treated sewage for cleaning and greening water.

[0029] The system further includes: a second return pipeline 2; the second return pipeline 2 is arranged between the first sedimentation tank and the adjusting tank, and the control unit is provided on the second return pipeline 2 to control the sewage to flow back into the adjusting tank for recirculation during maintenance.

[0030] Further, a sewage advanced treatment section is provided, and the sewage advanced treatment section includes a flotation de-sludging tank, an intermediate water tank and a clear water tank arranged in sequence.

[0031] In practical applications, an intermediate water tank can be arranged between the primary sewage treatment section and the sewage advanced treatment section.

[0032] Further, a filtering device is arranged between the intermediate water tank and the clear water tank to filter the treated water in the intermediate water tank and then flow into the clear water tank.

[0033] Further, the filtering device includes: a disc filter, a multi-media filter and an activated carbon filter.

[0034] Furthermore, a slag scraping device is provided on the air flotation slag removal tank to scrape the floating slag in the air flotation slag removal tank.

[0035] In practical applications, the sewage treatment process includes two stages: a primary treatment stage and an advanced treatment stage, which is a one-way full-process treatment. Sewage enters the interior of the sewage treatment plant through the first valve from the factory sewage pipe network, is collected in the collection tank, and simple large debris is removed in the collection tank. Then it enters the primary treatment stage for step-by-step treatment. This stage mainly relies on two forms: lift pumps and automatic overflow to complete the flow between multiple groups of tanks. Finally, it enters the ground equipment through the lift pump group for advanced treatment, mainly including various filters and air flotation slag scraping equipment, etc. After advanced treatment, the water quality reaches the secondary reuse standard and becomes reclaimed water, which is collected in the intermediate water tank and used as greening irrigation water.

[0036] To ensure that the entire sewage treatment system does not stop operating during the maintenance period, first, the inlet valve at the source is not closed, and sewage normally enters the sewage treatment plant. The maintenance preparation stage is divided into four aspects: storage, retention, treatment, and preparation. Storage: Store water in the intermediate water tank. There are two purposes for storing water: one is to lower the water level of the entire sewage system and create space; the other is to reserve reclaimed water for use during the maintenance period. Retention: Reserve space in the internal tanks. The purpose of reserving space is to have enough space for staged water storage during subsequent maintenance at the backend to ensure the normal operation of the front-end process. Treatment: Treat sewage with low flow rate throughout the system. The purpose of low flow rate treatment is to ensure that it can be quickly put into operation after the maintenance is completed and reduce the damage to the biological environment in the biochemical treatment stage of sewage treatment. Preparation: Reserve maintenance water. Each process section reserves sufficient maintenance water according to the maintenance needs to reduce or eliminate the need for external water supply.

[0037] Furthermore, the control unit includes: a water pump, a control valve group, and a controller; the controller is respectively signal-connected to the water pump and the control valve group, and controls the operation of the water pump and the conduction or disconnection of the control valve group according to control instructions.

[0038] Furthermore, the control unit further includes: a display screen; a sewage treatment APP operation interface is provided on the display screen, and the display screen is signal-connected to the controller; an operator sends control instructions to the controller through the sewage treatment APP operation interface.

[0039] The system further includes: an alarm device (not shown in the figure); the alarm device is signal-connected to the controller, and the controller controls the alarm device to give an alarm when a failure occurs in the water pump or the control valve group.

[0040] Furthermore, the controller is a microprocessor or a PLC programmable controller.

[0041] It can be seen that the present utility model provides a sewage treatment system for a cigarette factory, in which a collecting tank, a regulating tank, a coagulation tank, a first sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a second sedimentation tank are sequentially arranged in the primary sewage treatment section for sewage treatment. A first return pipeline is arranged between the contact oxidation tank and the regulating tank to adjust the sewage circulation. Temporary pipelines are provided in both the contact oxidation tank and the second sedimentation tank and are connected to the flushing pipeline to use the sewage after primary treatment for cleaning and greening water. This solves the problem that the industrial wastewater in the existing cigarette factory is discharged into the municipal pipe network after treatment, lacking effective utilization of the sewage and easily causing waste of water resources, and can improve the sewage utilization rate of the factory enterprise and reduce the environmental pressure on the city.

[0042] The structure, features and function effects of the present utility model have been described in detail based on the illustrated embodiments above. The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, should still be within the protection scope of the present utility model as long as they do not exceed the spirit covered by the description and the drawings.

Claims

1. A sewage treatment system for a cigarette factory, characterized in that: include: A first return line, a flushing line and a control unit; In the primary sewage treatment section, a water collection tank, a regulating tank, a coagulation tank, a first-stage sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank and a second-stage sedimentation tank are sequentially set up to carry out primary sewage treatment; The first return pipeline is arranged between the contact oxidation tank and the first stage sedimentation tank, and the first return pipeline is provided with the control unit to control the sewage to return to the first stage sedimentation tank for recycling when the sewage in the contact oxidation tank does not meet the treatment standard; The contact oxidation tank and the second-stage sedimentation tank are both provided with temporary pipelines connected to the flushing pipeline so that the sewage after primary treatment can be used for cleaning and greening water.

2. The cigarette factory wastewater treatment system according to claim 1, characterized in that: Also includes: The second return line; A second return pipeline is arranged between the first sedimentation tank and the regulating tank, and the second return pipeline is provided with the control unit to control the sewage to flow back into the regulating tank for recirculation during maintenance.

3. The cigarette factory wastewater treatment system according to claim 2, characterized in that: A sewage deep treatment section is provided, and the sewage deep treatment section comprises an air flotation deslagging tank, a transfer water tank and a clear water tank which are arranged in sequence.

4. The cigarette factory wastewater treatment system according to claim 3, characterized in that: A filtering device is provided between the transfer water tank and the clean water tank to filter the treated water in the transfer water tank and then flow the treated water into the clean water tank.

5. The cigarette factory wastewater treatment system according to claim 4, characterized in that: The filtering arrangement includes: a disc filter, a multi-media filter and an activated carbon filter.

6. The cigarette factory wastewater treatment system according to claim 5, characterized in that: The air flotation slag removal tank is provided with a scraping device to scrape the slag in the air flotation slag removal tank.

7. The cigarette factory wastewater treatment system according to claim 6, characterized in that: The control unit includes: a water pump, a control valve group and a controller; The controller is respectively connected to the water pump and the control valve group by signals, and controls the operation of the water pump and the on / off of the control valve group according to control instructions.

8. The cigarette factory wastewater treatment system according to claim 7, characterized in that: The control unit also includes: a display screen; The display screen is provided with a sewage treatment APP operation interface, and the display screen is connected to the controller signal; The operator sends control instructions to the controller through the sewage treatment APP operation interface.

9. The cigarette factory wastewater treatment system according to claim 8, characterized in that: Also includes: Alarm device; The alarm device is connected to the controller signal, and the controller controls the alarm device to alarm when the water pump or the control valve group fails.

10. The cigarette factory wastewater treatment system according to claim 9, characterized in that: The controller is a microprocessor or a PLC programmable controller.

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