Semi-coke production wastewater filtering device

Abstract

The utility model relates to the technical field of semi-coke production, and particularly discloses a semi-coke production wastewater filtering device which comprises a water conveying pipe, a water discharging pipe and a filtering box, a filtering net used for filtering solid impurities in wastewater is arranged in the filtering box, and the filtering net is of an arc-shaped structure. The end, connected with the filtering box, of the water conveying pipe is further hinged to a material blocking net door preventing solid impurities in the filtering box from flowing back into the water conveying pipe, and the end of the water conveying pipe is provided with a non-return groove used for preventing the material blocking net door from entering the water conveying pipe and containing the bottom end of the material blocking net door. One end, far away from the drainage pipe, of the bottom side of the filter screen is communicated and connected with a storage water filtering barrel, and a rotary scraping mechanism capable of brushing the inner surface of the filter screen and preventing the filter screen from being blocked is further mounted in the filter box, so that the problems that traditional semi-coke wastewater contains oil pollutants with relatively high viscosity, the filter screen is easily blocked by solid impurities, and the pollution is caused are solved. The discharge and filtration treatment of the wastewater are influenced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of semi-coke production, and particularly discloses a semi-coke production wastewater filtering device. BACKGROUND

[0002] Semi-coke is a new coal conversion product, which is widely used in industries such as calcium carbide, ferroalloy, fertilizer gas production, blast furnace injection and clean coal manufacturing for civil use due to its low price and advantages such as high fixed carbon, high specific resistance and high chemical activity. Semi-coke wastewater is wastewater generated during semi-coke production when coal is subjected to low-temperature dry distillation (about 650 DEG C), and mainly comes from circulating water for cooling and washing coal gas and separated water in the production process. The semi-coke wastewater mainly contains pollutants such as petroleum, COD, volatile phenol and ammonia nitrogen, and therefore, the wastewater needs to be comprehensively treated to remove various pollutants in the wastewater and achieve the purpose of wastewater recycling.

[0003] At present, when semi-coke wastewater is treated, physical methods such as filtration, sedimentation and flocculation are used for treatment in sequence. During the filtration treatment of the semi-coke wastewater, oil pollutants with high viscosity in the semi-coke wastewater are easy to be accumulated together with solid impurities and to be blocked on the filter screen, which affects the drainage speed of the wastewater through the filter screen and is not convenient for the filtration treatment of the semi-coke wastewater. Therefore, the inventor provides a semi-coke production wastewater filtering device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem that the traditional semi-coke wastewater contains oil pollutants with high viscosity, which is easy to be accumulated together with solid impurities and to be blocked on the filter screen, affecting the discharge and filtration treatment of the wastewater.

[0005] In order to achieve the above purpose, the basic scheme of the utility model provides a semi-coke production wastewater filtering device, which comprises a water delivery pipe for flowing and conveying semi-coke wastewater, a drainage pipe for discharging the wastewater and a filtering box arranged between the water delivery pipe and the drainage pipe. A filter screen for filtering solid impurities in the wastewater is arranged in the filtering box. The filter screen is in a circular arc structure. A material blocking screen door for preventing the solid impurities in the filtering box from flowing back to the water delivery pipe is hingedly connected to one end of the water delivery pipe connected with the filtering box. A reverse stopping groove for preventing the material blocking screen door from entering the water delivery pipe and for accommodating the bottom end of the material blocking screen door is arranged at the end of the water delivery pipe. A filter water bucket is connected in communication with one end of the bottom side of the filter screen away from the drainage pipe. A rotary material scraping mechanism for brushing the inner surface of the filter screen and preventing the filter screen from being blocked is arranged in the filtering box.

[0006] The principle and effect of the basic scheme are as follows:

[0007] 1. Compared with the prior art, the utility model discloses a filter screen of arc structure and a rotary scraping mechanism, which facilitates the brushing of the filter screen, prevents sundries from blocking the filter screen, and facilitates the storage of sundries filtered in the filter box without affecting the circulation of wastewater.

[0008] Further, the rotary scraping mechanism comprises a motor installed outside the filter box, a rotating rod coaxially connected with the output end of the motor and rotatably connected with the two walls inside the filter box at two ends, connecting rods symmetrically arranged at the two ends of the rotating rod, and a scraping rod arranged between the symmetric connecting rods and capable of scraping inside the filter screen.

[0009] Further, the scraping rod is provided with oil-absorbing cotton capable of scraping the surface of the filter screen and located on both sides of the scraping spike.

[0010] Further, the scraping spike is made of soft silica gel.

[0011] Further, the storage filter bucket is located at one end of the filter screen close to the water delivery pipe. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1This paper shows a schematic diagram of the overall structure of a semi-coke production wastewater filtration device according to an embodiment of this application;

[0014] Figure 2 The diagram shows a front view of the scraper bar of a wastewater filtration device for semi-coke production according to an embodiment of this application. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] The reference numerals in the accompanying drawings include: 1. Water supply pipe; 2. Drainage pipe; 3. Filter box; 4. Filter screen; 5. Material baffle; 6. Check groove; 7. Filter bucket; 8. Rotating rod; 9. Connecting rod; 10. Scraper; 11. Scraper bar; 12. Oil absorbent cotton.

[0017] A wastewater filtration device for semi-coke production, implementing, for example Figure 1 As shown: It includes a water supply pipe 1 for conveying semi-coke wastewater, a drain pipe 2 for discharging wastewater, and a filter box 3 located between the water supply pipe 1 and the drain pipe 2. The water supply pipe 1 is connected to the top left side of the filter box 3, and the drain pipe 2 is connected to the bottom side of the filter box 3. The filter box 3 is equipped with a filter screen 4 for filtering solid impurities in the wastewater. The filter screen 4 is a quarter-cylinder arc-shaped structure. One end of the water supply pipe 1 connected to the filter box 3 is also hinged with a baffle screen 5 to prevent solid impurities in the filter box 3 from flowing back into the water supply pipe 1. The end of the water supply pipe 1 is equipped with a check groove 6 to prevent the baffle screen 5 from entering the water supply pipe 1 and to accommodate the bottom end of the baffle screen 5. The bottom side of the filter screen 4 away from the drain pipe 2 is connected to a filter bucket 7. The filter box 3 is also equipped with a rotating scraping mechanism that can brush the inner surface of the filter screen 4 and prevent the filter screen 4 from clogging.

[0018] Among them, such as Figure 1 and Figure 2 As shown, the rotary scraping mechanism includes a motor installed on the outside of the filter box 3, a rotating rod 8 whose two ends are rotatably connected to the two inner walls of the filter box 3 and coaxially connected to the output end of the motor, a connecting rod 9 symmetrically arranged at both ends of the rotating rod 8, and a scraping rod 10 arranged between the symmetrical connecting rods 9 and capable of scraping inside the filter screen 4. The surface of the scraping rod 10 is uniformly provided with a large number of scraping spikes 11.

[0019] Among them, such as Figure 1 and Figure 2As shown, the surface of the scraping rod 10 is provided with oil absorbing cotton 12 which can be wiped on the surface of the filter screen 4 and located on both sides of the scraping spike 11, wherein the oil absorbing cotton 12 is the existing product after dehydration and oil removal treatment, only absorbs oil substances and does not absorb moisture, is suitable for treating petroleum hydrocarbon, hydrocarbon and the like, keeps the working environment clean, in industrial cleaning, the oil absorbing and water non-absorbing material can efficiently absorb oil substances in industrial wastewater, purifies the wastewater and achieves the purpose of energy saving and emission reduction.

[0020] In the specific implementation process of the utility model, the wastewater generated during the production of semi-coke is discharged into the water conveying pipe 1, the semi-coke wastewater entering the water conveying pipe 1 flushes open the material blocking screen door 5 and enters the filter box 3 and the scraping door, then the motor starts scraping, the sundries are scraped into the filter water receiving barrel 7, and the wastewater is discharged through the drain pipe 2.

[0021] Compared with the prior art, the utility model sets the filter screen 4 in the arc structure and sets the rotary scraping mechanism, which facilitates brushing the filter screen 4, prevents sundries from blocking the filter screen 4, sets the filter water receiving barrel 7, which facilitates receiving the sundries filtered in the filter box 3, meanwhile does not affect the circulation of the wastewater, sets the material blocking screen door 5 hinged with the water conveying pipe 1 and the reverse prevention groove 6, which not only facilitates the normal discharge of the wastewater in the water conveying pipe 1, but also prevents the sundries in the filter box 3 from returning to the water conveying pipe 1, solves the problem that the traditional semi-coke wastewater contains oil pollutants with large viscosity, which is easy to block the filter screen together with solid sundries, affects the discharge and filtration treatment of the wastewater.

[0022] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with a preferred embodiment, however, it is not used to limit the utility model, any person skilled in the art, without departing from the technical scheme range of the utility model, can make some changes or modifications to the equivalent embodiments with the disclosed technical content, as long as it does not depart from the technical scheme content of the utility model, any simplification, modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, all still belong to the range of the technical scheme of the utility model.

Claims

1. A filter device for semi-coke production wastewater, characterized by: The utility model provides a filter box, a filter screen, a rotating scraping mechanism and a filter water bucket, and the filter screen is arranged in the filter box.

2. The filter device for the semi-coke production wastewater according to claim 1, characterized in that, The rotating scraping mechanism comprises a motor, a rotating rod, connecting rods and a scraping rod.

3. The filter device for the semi-coke production wastewater according to claim 2, characterized in that, The motor is arranged outside the filter box.

4. The filter device for the semi-coke production wastewater according to claim 3, characterized in that, The two ends of the rotating rod are rotatably connected to the two walls inside the filter box and coaxially connected to the output end of the motor.

5. The filter device for the semi-coke production wastewater according to claim 4, characterized in that, The connecting rods are symmetrically arranged at the two ends of the rotating rod. The scraping rod is arranged between the symmetric connecting rods and can scrape inside the filter screen. The surface of the scraping rod is uniformly provided with a plurality of scraping spikes. The scraping rod is provided with oil-absorbing cotton on both sides of the scraping spikes. The scraping spikes are made of soft silica gel. The filter water bucket is arranged at one end of the filter screen close to the water pipe.

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