Skid-mounted sewage treatment device

Abstract

The utility model discloses a skid-mounted sewage treatment device which comprises an oil-water separator module, an air floatation slag scraping treatment device module and a stacked spiral sludge dewatering device module, the oil-water separator module, the air floatation slag scraping treatment device module and the stacked spiral sludge dewatering device module are all installed in a skid shell, and a medicament barrel assembly module is further arranged in the skid shell. The stacked spiral sludge dewatering device module is mounted at the output end of the air floatation slag scraping treatment device module, and the medicament barrel assembly module and the oil-water separator module are arranged on the same side of the air floatation slag scraping treatment device module; the oil-water separator module is communicated with the input end of the air floatation slag scraping treatment device module through a water pipe, and the medicament barrel assembly module comprises a plurality of barrels for storing different medicaments; and a supporting seat is arranged at the bottom of each module. The utility model has the advantages that the structure is simple and compact, the transportation is greatly facilitated, and the on-site installation and debugging time is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment. Background Art

[0002] Sewage treatment equipment is widely used in the purification treatment of domestic sewage, industrial wastewater, etc. Through sewage treatment, it can effectively prevent sewage, i.e., pollutants, from directly entering water areas. Therefore, it is of great significance to the ecological environment.

[0003] Currently, sewage treatment equipment usually requires on-site installation, connection of pipelines, and system debugging. Due to the simple on-site construction conditions, incomplete construction conditions, and high construction and debugging difficulties, the on-site installation and debugging period is long, time-consuming and laborious. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a skid-mounted sewage treatment device, which has a simple structure, is convenient to install, and effectively saves the on-site installation and debugging time.

[0005] To solve the above problems, the technical solution adopted by the utility model is: a skid-mounted sewage treatment device, including an oil-water separator module, a flotation and slag scraping treatment device module, and a spiral press sludge dewatering device module. It is characterized in that: the oil-water separator module, the flotation and slag scraping treatment device module, and the spiral press sludge dewatering device module are all installed in a skid shell. A reagent barrel assembly module is also arranged in the skid shell. The spiral press sludge dewatering device module is installed at the output end of the flotation and slag scraping treatment device module. The reagent barrel assembly module and the oil-water separator module are arranged on the same side of the flotation and slag scraping treatment device module. The oil-water separator module is connected to the input end of the flotation and slag scraping treatment device module through a water pipe. The reagent barrel assembly module includes several barrels for storing different reagents. A support base is arranged at the bottom of each module.

[0006] Further, in the aforementioned skid-mounted sewage treatment device, the flotation and slag scraping treatment device module includes: a pH adjustment reaction zone, a PAC reaction zone, a PAM reaction zone, and a flotation and slag scraping zone that are connected in sequence. The reagent barrel assembly module includes a pH adjustment reagent barrel for storing acid or alkali, a PAC reagent barrel for storing PAC reaction reagents, and a PAM reagent barrel for storing PAM reaction reagents. The pH adjustment reagent barrel is connected to the pH adjustment reaction zone through a pH adjustment reagent delivery pipeline. The PAC reagent barrel is connected to the PAC reaction zone through a PAC reagent delivery pipeline. The PAM reagent barrel is connected to the PAM reaction zone through a PAM reagent delivery pipeline.

[0007] Further, for the above-mentioned skid-mounted sewage treatment device, on each reagent delivery pipeline, a chemical dosing pump, a manual valve, a damper, a pressure gauge, and a back-pressure valve are sequentially arranged along the reagent delivery direction; a bypass pipe is also connected to each reagent delivery pipeline, and a safety valve is arranged on the bypass pipe, and each bypass pipe is communicated with the corresponding reagent barrel.

[0008] Furthermore, for the above-mentioned skid-mounted sewage treatment device, flow calibrators are arranged on the reagent delivery pipelines corresponding to the PAC reagent barrel and the PAM reagent barrel.

[0009] Further, for the above-mentioned skid-mounted sewage treatment device, a maintenance platform is arranged between the air flotation scum scraping treatment device module and the reagent barrel assembly module, and a ladder is arranged between the oil-water separator modules, and the ladder communicates upward to the maintenance platform.

[0010] Still further, for the above-mentioned skid-mounted sewage treatment device, a first rolling door, a second rolling door, and a third rolling door are arranged on the skid shell. The first rolling door is arranged outside the reagent barrel assembly module, the second rolling door is arranged outside the ladder, and the third rolling door is arranged at the end on one side of the spiral press sludge dewatering device module.

[0011] Furthermore, for the above-mentioned skid-mounted sewage treatment device, a main control cabinet is also arranged between the handrail and the oil-water separator module, and an outdoor operation screen is arranged on the main control cabinet, and the outdoor operation screen is arranged on the skid shell.

[0012] Further, for the above-mentioned skid-mounted sewage treatment device, a sludge barrel is arranged at the output end of the spiral press sludge dewatering device module.

[0013] Further, for the above-mentioned skid-mounted sewage treatment device, the oil-water separator module includes an oil-water separator and a waste oil barrel; the spiral press sludge dewatering device module includes a spiral press sludge dewatering machine and a sludge barrel arranged at the output end of the spiral press sludge dewatering machine.

[0014] The advantages of the present utility model are as follows: First, the structure is simple. The oil-water separator module, the air flotation scum scraping treatment device module, the spiral press sludge dewatering device module, and the reagent barrel assembly module are integrated in the skid shell to form a skid-mounted sewage treatment device, which greatly facilitates transportation and effectively saves the time for on-site installation and commissioning. Second, the entire skid-mounted sewage treatment device has a compact structure and a small floor space. Third, for this skid-mounted sewage treatment device, due to the arrangement of multiple rolling doors, as well as ladders and maintenance platforms, its maintenance and repair are very convenient. Fourth, adopting a skid-mounted structure, all equipment is arranged in the skid shell, and the skid shell plays an effective role in preventing rain, sun, and dust, which can effectively extend the service life of the entire sewage treatment device. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the external structure of a skid-mounted sewage treatment device described in the present utility model.

[0016] Figure 2 is a schematic diagram of the installation structure of the chemical agent barrel assembly module in a skid-mounted sewage treatment device described in the present utility model.

[0017] Figure 3 is a schematic diagram of the installation structure of the spiral press sludge dewatering device module in a skid-mounted sewage treatment device described in the present utility model.

[0018] Figure 4 is a schematic diagram of the pipeline connection structure of the chemical agent barrel assembly module in a skid-mounted sewage treatment device described in the present utility model. Detailed Description of the Preferred Embodiment

[0019] The present utility model will be further described in detail below with reference to the drawings and preferred embodiments.

[0020] As Figure 1 , Figure 2 , Figure 3 shown, a skid-mounted sewage treatment device includes an oil-water separator module 1, a flotation slag scraping treatment device module 2, a spiral press sludge dewatering device module 3, and a chemical agent barrel assembly module 4; the oil-water separator module 1, the flotation slag scraping treatment device module 2, the spiral press sludge dewatering device module 3, and the chemical agent barrel assembly module 4 are all installed in a skid shell 10. The spiral press sludge dewatering device module 3 is installed at the output end of the flotation slag scraping treatment device module 2, and the spiral press sludge dewatering device module 3 includes a spiral press sludge dewatering machine 31 and a sludge barrel 32 provided at the output end of the spiral press sludge dewatering machine 31. The oil-water separator module 1 includes an oil-water separator 12 and a waste oil barrel 13.

[0021] The chemical agent barrel assembly module 4 and the oil-water separator module 1 are arranged on the same side of the flotation slag scraping treatment device module 2. The oil-water separator module 1 is communicated with the input end of the flotation slag scraping treatment device module 2 through a water pipe 101. The chemical agent barrel assembly module 4 includes several barrels for storing different chemical agents. Each module is arranged on a support seat. Specifically, the oil-water separator module 1 is arranged on the oil-water separator module support seat 11, the flotation slag scraping treatment device module 2 is arranged on the flotation slag scraping treatment device module support seat 21, the spiral press sludge dewatering device module 3 is arranged on the spiral press sludge dewatering device module support seat 31, and the chemical agent barrel assembly module 4 is arranged on the chemical agent barrel assembly module support seat 41.

[0022] In this embodiment, a maintenance platform 5 is provided between the air flotation slag scraping treatment device module 2 and the reagent barrel assembly module 4, and a ladder 6 is provided between the reagent barrel assembly module 4 and the oil-water separator module 1. The ladder 6 communicates upward to the maintenance platform 5. A first rolling shutter door 7, a second rolling shutter door 8, and a third rolling shutter door 9 are provided on the skid shell 10. The first rolling shutter door 7 is arranged outside the reagent barrel assembly module 4, the second rolling shutter door 8 is arranged outside the ladder 6, and the third rolling shutter door 9 is arranged at the end on one side of the spiral press sludge dewatering device module 3. The settings of the maintenance platform 5, the ladder 6, the first rolling shutter door 7, the second rolling shutter door 8, and the third rolling shutter door 9 greatly facilitate maintenance.

[0023] A main control cabinet 20 is further provided between the handrail 6 and the oil-water separator module 1. An outdoor operation screen 30 is provided on the main control cabinet 20, and the outdoor operation screen 30 is arranged on the skid shell 10. The main control cabinet 20 is used to control each working module, and the setting of the outdoor operation screen 30 also greatly facilitates the setting and control adjustment of each working module.

[0024] The air flotation slag scraping treatment device module 2 includes: a pH adjustment reaction zone 23, a PAC reaction zone 24, a PAM reaction zone 25, and an air flotation slag scraping zone 26 that are connected in sequence. The reagent barrel assembly module 4 includes a pH adjustment reagent barrel 42 for storing acid or alkali, a PAC reagent barrel 43 for storing PAC reaction reagents, and a PAM reagent barrel 44 for storing PAM reaction reagents. The pH adjustment reagent barrel 42 is connected to the pH adjustment reaction zone 23 through a pH adjustment reagent delivery pipeline 421; the PAC reagent barrel 43 is connected to the PAC reaction zone 24 through a PAC reagent delivery pipeline 431; the PAM reagent barrel 44 is connected to the PAM reaction zone 25 through a PAM reagent delivery pipeline 441.

[0025] As Figure 4 shown, in this embodiment, a first chemical dosing pump 422, a first manual valve 423, a first damper 424, a first pressure gauge 425, and a first back pressure valve 426 are sequentially arranged on the pH adjustment reagent delivery pipeline 421 along the reagent delivery direction. A first bypass pipe 427 is further connected to the pH adjustment reagent delivery pipeline 421. A first safety valve 428 is arranged on the first bypass pipe 427, and the first bypass pipe 428 is connected to the pH adjustment reagent barrel 42.

[0026] On the PAC reagent delivery pipeline 431, in the direction of reagent delivery, a second chemical dosing pump 432, a second manual valve 433, a second damper 434, a second pressure gauge 435, and a second back pressure valve 436 are successively arranged. A second bypass pipe 437 is connected to the PAC reagent delivery pipeline 431. A second safety valve 438 is arranged on the second bypass pipe 437, and the second bypass pipe 437 is connected to the PAC reagent barrel 43. A PAC flow calibrator 439 is also arranged on the PAC reagent delivery pipeline 431. The PAC flow calibrator 439 can be used to calibrate the dosage of PAC reaction reagent to ensure sufficient flocculation reaction of sewage in the PAC reaction zone 24.

[0027] On the PAM reagent delivery pipeline 441, in the direction of reagent delivery, a third chemical dosing pump 442, a third manual valve 443, a third damper 444, a third pressure gauge 445, and a third back pressure valve 446 are successively arranged. A third bypass pipe 447 is connected to the PAM reagent delivery pipeline 441. A third safety valve 448 is arranged on the third bypass pipe 447, and the third bypass pipe 447 is connected to the PAM reagent barrel 44. A PAM flow calibrator 449 is also arranged on the PAM reagent delivery pipeline 441. The PAM flow calibrator 449 can be used to calibrate the dosage of PAM reaction reagent to ensure sufficient further flocculation reaction of sewage in the PAM reaction zone 24.

[0028] Working principle: Directly install the entire skid-mounted sewage treatment device at the location where sewage treatment is required. The sewage to be treated first enters the oil-water separator 12 of the oil-water separator module 1. The sewage undergoes oil-water stratification in the oil-water separator. The grease floating on the liquid surface is collected into the waste oil barrel 13, and the sewage from which the floating oil has been removed enters the air flotation and scum removal treatment device module 2 through the water pipe 101.

[0029] The sewage first enters the pH adjustment reaction zone 23 of the air flotation and scum removal treatment device module 2, and the pH value is adjusted in the pH adjustment reaction zone 23 so as to better carry out the flocculation reaction. Usually, the pH value is adjusted to 7.0. The acid or alkali reagent required in the pH adjustment reaction zone 23 is delivered by the pH adjustment reagent delivery pipeline 421. Whether to use acid or alkali is considered according to the actual pH value of the sewage.

[0030] The sewage with the pH value adjusted to 7.0 in the pH adjustment reaction zone 23 enters the PAC reaction zone 24. The sewage undergoes PAC flocculation reaction in the PAC reaction zone 24, effectively removing the suspended solids in the sewage and forming flocs so that they can be separated from the water. The PAC reaction reagent in the PAC reaction zone 24 is delivered by the PAC reagent delivery pipeline 431. The PAC reaction reagent is polyaluminum chloride.

[0031] The sewage in the PAC reaction zone 24 enters the PAM reaction zone 25, where the sewage further undergoes a PAM reaction to further remove the suspended solids in the sewage. The PAM reaction reagent in the PAM reaction zone 24 is transported by the PAM reagent delivery pipeline 441. The PAM reaction reagent is polyacrylamide.

[0032] Then, the sewage enters the air flotation scum scraping zone 26 from the PAM reaction zone 25. Through the air flotation method, air bubbles attach to the suspended solids generated by flocculation in the sewage, then float to the water surface, and then the scum floating on the water surface is scraped off. The scraped scum enters the spiral screw sludge dewatering machine 31 of the spiral screw sludge dewatering device module 3 for dewatering, and the waste residue generated by the dewatering is collected in the sludge bucket 32.

[0033] The advantages of the present utility model are as follows: First, the structure is simple. The oil-water separator module 1, the air flotation scum treatment device module 2, the spiral screw sludge dewatering device module 3, and the reagent barrel assembly module 4 are integrated in the skid shell 10 to form a skid-mounted sewage treatment device, which greatly facilitates transportation, effectively saves the time for on-site installation and commissioning, and greatly shortens the overall construction and commissioning cycle of the sewage treatment device. Second, for the entire skid-mounted sewage treatment device, its structure is compact, and the occupied space is effectively reduced. Third, for this skid-mounted sewage treatment device, due to the provision of multiple rolling doors, as well as the ladder 6 and the maintenance platform 5, its maintenance and repair are very convenient. Fourth, adopting the skid-mounted structure, all equipment is arranged in the skid shell 10, and the skid shell 10 plays an effective role in preventing rain, sun, and dust, which can effectively extend the service life of the entire sewage treatment device.

Claims

1. A skid-mounted sewage treatment device, comprising an oil-water separator module, an air flotation scraper treatment device module, and a screw-type sludge dewatering device module, characterized in that: The oil-water separator module, the air flotation scraper treatment device module, and the screw-stacked sludge dehydration device module are all installed in the skid shell. A medicine barrel assembly module is also provided in the skid shell. The screw-stacked sludge dehydration device module is installed at the output end of the air flotation scraper treatment device module. The medicine barrel assembly module and the oil-water separator module are arranged on the same side of the air flotation scraper treatment device module. The oil-water separator module is connected to the input end of the air flotation scraper treatment device module through a water pipe. The medicine barrel assembly module includes several barrels for storing different medicines. A support seat is provided at the bottom of each module.

2. A skid-mounted sewage treatment device according to claim 1, characterized in that: The air flotation scraping treatment device module includes: a pH adjustment reaction zone, a PAC reaction zone, a PAM reaction zone, and an air flotation scraping zone which are connected in sequence; the reagent barrel assembly module includes a pH adjustment reagent barrel for storing acid or alkali, a PAC reagent barrel for storing PAC reaction reagent, and a PAM reagent barrel for storing PAM reaction reagent; the pH adjustment reagent barrel is connected to the pH adjustment reaction zone through a pH adjustment reagent delivery pipeline; the PAC reagent barrel is connected to the PAC reaction zone through a PAC reagent delivery pipeline; and the PAM reagent barrel is connected to the PAM reaction zone through a PAM reagent delivery pipeline.

3. A skid-mounted sewage treatment device according to claim 2, characterized in that: Each reagent delivery pipeline is provided with a dosing pump, a manual valve, a damper, a pressure gauge, and a back pressure valve in sequence along the reagent delivery direction; each reagent delivery pipeline is also connected to a bypass pipe, on which a safety valve is provided, and each bypass pipe is connected to a corresponding reagent barrel.

4. A skid-mounted sewage treatment device according to claim 3, characterized in that: Flow calibrators are provided on the reagent delivery pipelines corresponding to the PAC reagent barrel and the PAM reagent barrel.

5. The skid-mounted sewage treatment device according to claim 1, characterized in that: An inspection platform is provided between the air flotation scraper processing device module and the reagent barrel assembly module, and an escalator is provided between the oil-water separator modules, and the escalator is connected upward to the inspection platform.

6. The skid-mounted sewage treatment device according to claim 5, characterized in that: The skid shell is provided with a first rolling door, a second rolling door and a third rolling door. The first rolling door is arranged on the outside of the medicine barrel assembly module, the second rolling door is arranged on the outside of the escalator, and the third rolling door is arranged at the end on one side of the spiral stacking sludge dewatering device module.

7. The skid-mounted sewage treatment device according to claim 6, characterized in that: A main control cabinet is also arranged between the handrail and the oil-water separator module, and an outdoor operation screen is arranged on the main control cabinet, and the outdoor operation screen is arranged on the skid shell.

8. The skid-mounted sewage treatment device according to claim 1, characterized in that: A sludge bucket is provided at the output end of the screw stack type sludge dewatering device module.

9. The skid-mounted sewage treatment device according to claim 1, characterized in that: The oil-water separator module includes an oil-water separator and a waste oil barrel; the screw stack sludge dewatering device module includes a screw stack sludge dewatering machine and a sludge barrel arranged at the output end of the screw stack sludge dewatering machine.

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