Multistage filtering device for sulfasalazine wastewater

Abstract

The utility model discloses a kind of multi-stage filtering devices for sulfasalazine wastewater, it is related to multi-stage filtering device field, including primary filter box and secondary filter box, the height of secondary filter box is lower than primary filter box, filter screen is provided in secondary filter box inside;The side top of primary filter box is communicated with inclined discharge port, the bottom of inclined discharge port is inserted into secondary filter box, when electric slide rail is started, sliding block drives bottom scraper, connecting plate and interception net group move simultaneously, bottom scraper pushes the precipitate in primary filter box inside to funnel inside, while interception net can push the suspended matter suspended on liquid surface to inclined discharge port, and is transported to secondary filter box inside, after the filtration of filter screen, remaining liquid is pumped back to primary filter box inside, realizes circulation filtration, and further improves filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage filtration devices, and in particular to a multi-stage filtration device for sulfasalazine wastewater. Background Technology

[0002] Sulfasalazine is a commonly used anti-inflammatory drug, widely used to treat diseases such as inflammatory bowel disease. However, its production process generates a large amount of wastewater, which has the following characteristics:

[0003] High concentration of organic matter: The wastewater contains a large amount of organic compounds, such as unreacted raw materials, intermediates, and degradation products, resulting in high chemical oxygen demand (COD) and biochemical oxygen demand (BOD). Recalcitrant nature: The organic composition of sulfasalazine wastewater is complex, and some substances are difficult to biodegrade, increasing the difficulty of wastewater treatment.

[0004] While common physical methods such as sedimentation and filtration can remove some suspended solids and precipitates, collecting and cleaning these solids and precipitates requires different procedures, which is quite cumbersome.

[0005] Therefore, it is necessary to propose a multi-stage filtration device for sulfasalazine wastewater to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a multi-stage filtration device for sulfasalazine wastewater, which solves the problem that although physical methods such as sedimentation and filtration can remove some suspended solids and precipitates, the collection and cleaning of suspended solids and precipitates require different procedures, which is quite cumbersome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage filtration device for sulfasalazine wastewater, comprising a primary filtration box and a secondary filtration box, wherein the height of the secondary filtration box is lower than that of the primary filtration box, and a filter screen is provided inside the secondary filtration box;

[0008] The top of one side of the primary filter box is connected to an inclined outlet, and the bottom of the inclined outlet extends into the secondary filter box.

[0009] A bottom scraper is slidably installed inside the primary filter box along its length. A connecting plate is fixed to one side of the top of the bottom scraper, and an interception net is fixed to the top of the connecting plate.

[0010] A funnel is connected to one side of the bottom of the primary filter box.

[0011] Preferably, a top plate is fixedly connected to the top of the primary filter box, and a suction pipe is fixed on the top plate, with the bottom end of the suction pipe extending into the funnel.

[0012] Preferably, a fixing plate is fixed to one side of the interior of the primary filter box, and a channel is left between the fixing plate and the other side of the interior of the primary filter box;

[0013] The bottom scraper, connecting plate, and intercepting net are combined in a U-shape, and the U-shaped structure is fixed by a fixing plate.

[0014] Preferably, electric slide rails are fixed at the bottom of both sides of the primary filter box along the length direction, and sliders are slidably engaged on opposite sides of the two electric slide rails, with the bottom scraper fixed between the two sliders.

[0015] Preferably, the top two sides of the primary filter box are fixed with sliding grooves along the length direction, and the two ends of the interception net are fixed with sliding blocks, which are respectively slidably engaged in the corresponding sliding grooves.

[0016] Preferably, a pump body is fixed to the outside of the primary filter box, the bottom of the secondary filter box is connected to the input end of the pump body through a connecting pipe, and the output end of the pump body is connected to the inside of the primary filter box through a pipe.

[0017] Preferably, both the primary filter box and the secondary filter box are fixed with support legs on their outer sides.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. When the electric slide rail is started, the slider drives the bottom scraper, connecting plate and intercepting net assembly to move simultaneously. The bottom scraper pushes the sediment in the first-stage filter box into the funnel, while the intercepting net pushes the suspended matter on the liquid surface to the inclined discharge port and delivers it into the second-stage filter box. After being filtered by the filter net, the remaining liquid is pumped back into the first-stage filter box by the pump body to achieve circulation filtration and further improve the filtration effect.

[0020] 2. The suction pipe can be connected to a suction pump to suction the waste liquid after the suspended solids are discharged. After suction is completed, the remaining sediment can be discharged through the bottom of the funnel.

[0021] 3. Through the synergistic effect of the primary and secondary filter boxes, impurities in sulfasalazine wastewater can be effectively removed, improving the wastewater treatment effect. At the same time, suspended solids and precipitates in the waste liquid can be collected and discharged simultaneously. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0023] Figure 1 This is a schematic diagram of the multi-stage filtration device for sulfasalazine wastewater according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the funnel and electric slide rail of this utility model.

[0025] Figure 3 This is a schematic diagram of the multi-stage filtration device for sulfasalazine wastewater from another perspective.

[0026] In the diagram: 1. Primary filter box; 2. Fixed plate; 3. Sliding groove; 4. Top plate; 5. Suction pipe; 6. Inclined discharge port; 7. Secondary filter box; 8. Filter screen; 9. Funnel; 10. Electric slide rail; 11. Slider; 12. Bottom scraper; 13. Pump body; 14. Connecting pipe; 15. Connecting plate; 16. Interception net. Detailed Implementation

[0027] This utility model provides, for example Figure 1 - Figure 3 The multi-stage filtration device for sulfasalazine wastewater shown includes a primary filter box 1 and a secondary filter box 7. Wastewater and a precipitant are injected into the primary filter box 1. The wastewater and the precipitant are mixed in the primary filter box 1. The role of the precipitant is to coagulate the impurities in the wastewater into larger particles, which facilitates subsequent filtration operations.

[0028] The height of the secondary filter box 7 is lower than that of the primary filter box 1, and a filter screen 8 is installed inside the secondary filter box 7.

[0029] The top of one side of the primary filter box 1 is connected to an inclined outlet 6, the bottom of which extends into the secondary filter box 7. The inclined outlet 6 is inclined so that suspended solids can be discharged into the secondary filter box 7.

[0030] Inside the primary filter box 1, a bottom scraper 12 is slidably installed along the length direction. A connecting plate 15 is fixed to one side of the top of the bottom scraper 12, and an interception net 16 is fixed to the top of the connecting plate 15.

[0031] The bottom of the primary filter box 1 is connected to a funnel 9. It should be noted that a control valve is connected to the bottom of the funnel 9.

[0032] A fixing plate 2 is fixed on one side of the interior of the primary filter box 1, and a passage is left between the fixing plate 2 and the other side of the interior of the primary filter box 1;

[0033] The bottom scraper 12, connecting plate 15 and intercepting net 16 are combined in a U-shape, and the U-shaped structure is fixed by the fixing plate 2.

[0034] A pump body 13 is fixed to the outside of the primary filter box 1. The bottom of the secondary filter box 7 is connected to the input end of the pump body 13 through a connecting pipe 14. The output end of the pump body 13 is connected to the inside of the primary filter box 1 through a pipe.

[0035] Electric slide rails 10 are fixed along the length of both sides of the bottom of the first-stage filter box 1. Slider 11 is slidably engaged on the opposite side of the two electric slide rails 10. The bottom scraper 12 is fixed between the two sliders 11.

[0036] When the electric slide rail 10 is started, the slider 11 drives the bottom scraper 12, connecting plate 15 and intercepting net 16 to move simultaneously. The bottom scraper 12 pushes the sediment in the first-stage filter box 1 into the funnel 9, while the intercepting net 16 pushes the suspended matter on the liquid surface to the inclined discharge port 6 and delivers it into the second-stage filter box 7. After being filtered by the filter screen 8, the remaining liquid is pumped back into the first-stage filter box 1 by the pump body 13 to achieve circulation filtration and further improve the filtration effect.

[0037] A top plate 4 is fixedly connected to the top of the primary filter box 1. A suction pipe 5 is fixed on the top plate 4. The bottom end of the suction pipe 5 extends into the funnel 9. The suction pipe 5 can be connected to a suction pump to suction the waste liquid after the suspended solids are discharged. After suction is completed, the remaining sediment can be discharged through the bottom end of the funnel 9.

[0038] Through the synergistic effect of primary filter box 1 and secondary filter box 7, impurities in sulfasalazine wastewater can be effectively removed, improving the wastewater treatment effect. At the same time, suspended solids and precipitates in the waste liquid can be collected and discharged simultaneously.

[0039] The top two sides of the first-stage filter box 1 are fixed with sliding grooves 3 along the length direction. The two ends of the interception net 16 are fixed with sliding blocks. The two sliding blocks slide and engage with the corresponding sliding grooves 3. The design of the sliding grooves 3 can increase the stability of the sliding of the interception net 16.

[0040] Both the primary filter box 1 and the secondary filter box 7 are fixed with support legs on the outside to increase support strength and height.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage filtration device for sulfasalazine wastewater, comprising a primary filter box (1) and a secondary filter box (7), characterized in that: The height of the secondary filter box (7) is lower than that of the primary filter box (1), and a filter screen (8) is provided inside the secondary filter box (7); The top of one side of the primary filter box (1) is connected to an inclined outlet (6), and the bottom of the inclined outlet (6) extends into the secondary filter box (7). The first-stage filter box (1) has a bottom scraper (12) that is slidably installed along the length direction inside. A connecting plate (15) is fixed to one side of the top of the bottom scraper (12), and an intercepting net (16) is fixed to the top of the connecting plate (15). The bottom side of the primary filter box (1) is connected to a funnel (9).

2. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: The top of the primary filter box (1) is fixedly connected to a top plate (4), and a suction pipe (5) is fixed on the top plate (4). The bottom end of the suction pipe (5) extends into the funnel (9).

3. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: A fixing plate (2) is fixed on one side of the interior of the primary filter box (1), and a channel is left on the other side of the interior of the primary filter box (1); The bottom scraper (12), the connecting plate (15) and the intercepting net (16) are combined in a U-shape, and the U-shaped structure is fixed by the fixing plate (2).

4. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: The bottom of both sides of the primary filter box (1) is fixed with electric slide rails (10) along the length direction. Slider (11) is slidably engaged on the opposite side of the two electric slide rails (10). The bottom scraper (12) is fixed between the two sliders (11).

5. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: The top two sides of the first-stage filter box (1) are fixed with sliding grooves (3) along the length direction. The two ends of the interception net (16) are fixed with sliding blocks. The two sliding blocks are respectively slidably engaged in the corresponding sliding grooves (3).

6. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: A pump body (13) is fixed on the outside of the primary filter box (1). The bottom end of the secondary filter box (7) is connected to the input end of the pump body (13) through a connecting pipe (14). The output end of the pump body (13) is connected to the inside of the primary filter box (1) through a pipe.

7. The multi-stage filtration device for sulfasalazine wastewater according to claim 1, characterized in that: Both the primary filter box (1) and the secondary filter box (7) are fixed with support legs on their outer sides.

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