Filtering device for sewage self-circulation of reduction furnace

Abstract

The utility model relates to the technical field of metallurgical furnace water system recycling, and discloses a filtering device for reduction furnace sewage self-circulation, which comprises a base, the top end of the base is fixedly connected with a reduction furnace body, and one side of the reduction furnace body is provided with a sewage treatment box. A through round hole is formed in the outer wall of the side, facing the sewage treatment tank, of the reduction furnace body, a filter screen is installed at the position, corresponding to the round hole, of the inner wall of the reduction furnace body, a sewage drainage pipe is fixedly connected between the reduction furnace body and the sewage treatment tank, and a circulating pump is installed at the top end of the sewage treatment tank. According to the technical scheme, the filter screen device is hung at the round hole of the reduction furnace body, impurities in return water circulating into the reduction furnace body can be filtered, the circulating pump can be prevented from being blocked by the impurities in the recycling process, the service life of the circulating pump is prolonged, frequent maintenance of the circulating pump is avoided, and the device is convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling utilization of water systems in metallurgical furnaces, in particular to a filtering device for self-circulation of sewage in a reduction furnace. Background Art

[0002] The cooling water used in the reduction furnace to produce lead ingots and the cooling water used in the slag are rich in heavy metals after long-term circulation. To ensure environmental protection, the sewage is not discharged. There is an enrichment well next to the furnace for the collection and use of sewage that exceeds the heavy metal standard.

[0003] The patent document with the published announcement number CN217708993U discloses a metallurgical wastewater sewage circulation treatment device, including a sewage treatment tank, a stirring motor is installed at the center of the upper end of the sewage treatment tank, the output shaft of the stirring motor extends into the interior of the sewage treatment tank and is fixed with a stirring blade, a batching barrel is installed at both ends of the sewage treatment tank, a mixing motor is installed at the lower end of the batching barrel, the output shaft of the mixing motor extends into the interior of the batching barrel and is fixed with a mixing blade, a guide hole is provided between the sewage treatment tank and the batching barrel, a circulating water lifting pipe is welded on the inner surface of the sewage treatment tank; a circulating motor is installed at both ends of the sewage treatment tank, the output shaft of the circulating motor extends into the interior of the sewage treatment tank and is fixed with a circulating blade, and the circulating blade is located inside the circulating water lifting pipe, and a sewage valve is installed on the outer surface of the lower end of the sewage treatment tank. Good mixing of metallurgical wastewater and sewage treatment additives can be achieved.

[0004] The sewage circulation equipment in the prior art may carry some other impurities and foreign objects during the circulation process, which may cause the circulation pump to be unable to operate and often requires maintenance or even damages the pump. Therefore, a filtering device for self-circulation of reduction furnace sewage is needed. Utility Model Content

[0005] The utility model aims to provide a filtering device for self-circulation of sewage in a reduction furnace, which solves the problems raised in the background technology.

[0006] The embodiment of the present application provides a filtering device for self-circulation of reduction furnace sewage, comprising a base, a reduction furnace body is fixedly connected to the top of the base, a sewage treatment tank is arranged on one side of the reduction furnace body, a through circular hole is opened on the outer wall of the reduction furnace body facing the sewage treatment tank, a filter is installed at the position of the inner wall of the reduction furnace body corresponding to the circular hole, a sewage drainage pipe is fixedly connected between the reduction furnace body and the sewage treatment tank, a circulation pump is installed on the top of the sewage treatment tank, a first connecting pipe is fixedly connected to the pumping end of the circulation pump, the first connecting pipe is penetrated into the interior of the sewage treatment tank, a second connecting pipe is fixedly connected to the drainage end of the circulation pump, the second connecting pipe is inserted into the interior of the circular hole, and a power control board is arranged on the front wall of the base.

[0007] By adopting the above technical solution, by hanging the filter on the circular hole position of the reduction furnace body, impurities in the return water circulating into the reduction furnace body can be filtered, and the circulation pump can be prevented from being blocked by impurities during the circulation process, thereby increasing the service life of the circulation pump and avoiding the need for frequent maintenance of the circulation pump, which is convenient and practical.

[0008] Optionally, both upper and lower ends of the filter are fixedly connected with connecting plates, and bolts are passed through the connecting plates, and the bolts are threadedly connected to the reduction furnace body.

[0009] The adoption of the technical solution is conducive to the rapid disassembly and assembly of the filter.

[0010] Optionally, the filter screen has a semicircular structure and is made of steel.

[0011] By adopting the above technical solution, some impurities can be stored inside the filter to avoid being discharged into the reduction furnace body again.

[0012] Optionally, anti-sliding blocks are fixedly connected to the four corners of the bottom end of the base.

[0013] The adoption of the above technical solution is helpful to improve the anti-slip effect of the base.

[0014] Optionally, a filter screen is installed inside the sewage treatment tank.

[0015] By adopting the above technical solution, impurities inside the sewage treatment tank can be filtered again, thereby improving the impurity filtering effect.

[0016] Optionally, the top of the sewage treatment tank is fixedly connected with an additive feed port.

[0017] By adopting the above technical solution, it is beneficial to add the sewage treatment agent into the sewage treatment tank for sewage treatment.

[0018] Optionally, the reduction furnace body and the front wall of the sewage treatment tank are both rotatably connected with a sealed door via a hinge.

[0019] By adopting the above technical solution, the reduction furnace body and the sewage treatment tank can be opened through the sealed door, and the filtering equipment inside them can be replaced and cleaned.

[0020] Optionally, a sealing gasket is provided at the connection position between the second connecting pipe and the circular hole.

[0021] The adoption of the above technical solution is helpful to improve the sealing effect at the connection position between the second connecting pipe and the circular hole.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can filter impurities in the return water circulating into the reduction furnace body by hanging the filter screen on the circular hole position of the reduction furnace body, thereby preventing the circulation pump from being blocked by impurities during the circulation process, thereby increasing the service life of the circulation pump and avoiding frequent maintenance of the circulation pump, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the internal structure of a filtering device for self-circulation of sewage in a reduction furnace according to the utility model;

[0026] Figure 2 This is an enlarged schematic diagram of the structure of region A of a filter device for self-circulation of sewage in a reduction furnace according to the utility model;

[0027] Figure 3 This is a schematic diagram of the overall structure of a filtering device for self-circulation of sewage in a reduction furnace according to the utility model;

[0028] Figure 4 The utility model is a side view structural schematic diagram of a reduction furnace body of a filtering device for self-circulation of reduction furnace sewage.

[0029] In the figure: 1. reduction furnace body; 2. base; 3. anti-sliding block; 4. power control board; 5. sewage drain pipe; 6. filter screen; 7. first connecting pipe; 8. circulation pump; 9. second connecting pipe; 10. sewage treatment tank; 11. bolt; 12. filter screen; 13. connecting plate; 14. sealing door; 15. round hole. DETAILED DESCRIPTION

[0030] See also Figure 1-4 The utility model provides a technical solution: a filtering device for self-circulation of sewage in a reduction furnace, comprising a base 2, a reduction furnace body 1 is fixedly connected to the top of the base 2, a sewage treatment tank 10 is arranged on one side of the reduction furnace body 1, a through-type circular hole 15 is opened on the outer wall of the reduction furnace body 1 facing the sewage treatment tank 10, a filter 12 is installed at the position of the circular hole 15 on the inner wall of the reduction furnace body 1, a sewage drainage pipe 5 is fixedly connected between the reduction furnace body 1 and the sewage treatment tank 10, a circulation pump 8 is installed on the top of the sewage treatment tank 10, a first connecting pipe 7 is fixedly connected to the pumping end of the circulation pump 8, the first connecting pipe 7 is penetrated into the interior of the sewage treatment tank 10, a second connecting pipe 9 is fixedly connected to the drainage end of the circulation pump 8, the second connecting pipe 9 is inserted into the interior of the circular hole 15, and a power control board 4 is arranged on the front wall of the base 2.

[0031] In the technical solution of the utility model, if Figure 2 As shown, the upper and lower ends of the filter 12 are fixedly connected with connecting plates 13, and bolts 11 are passed through the connecting plates 13, and the bolts 11 are threadedly connected to the reduction furnace body 1; this is conducive to the rapid disassembly and assembly of the filter 12.

[0032] In the technical solution of the utility model, if Figure 2 As shown, the filter 12 is a semicircular structure, and the filter 12 is made of steel; it can store some impurities inside the filter 12 to prevent them from being discharged into the reduction furnace body 1 again.

[0033] In the technical solution of the utility model, if Figure 1 As shown, the four corners of the bottom end of the base 2 are fixedly connected with anti-slip blocks 3, which is beneficial to improving the anti-slip effect of the base 2.

[0034] In the technical solution of the utility model, if Figure 1 As shown, a filter screen plate 6 is installed inside the sewage treatment box 10; the impurities inside the sewage treatment box 10 can be filtered again to improve the impurity filtering effect.

[0035] In the technical solution of the utility model, if Figure 1 As shown, the top of the sewage treatment tank 10 is fixedly connected with an additive feed port, which is conducive to adding sewage treatment agents into the sewage treatment tank 10 for sewage treatment.

[0036] In the technical solution of the utility model, if Figure 3 As shown, the front walls of the reduction furnace body 1 and the sewage treatment tank 10 are both rotatably connected with a sealing door 14 through hinges; the reduction furnace body 1 and the sewage treatment tank 10 can be opened through the sealing door 14 to replace and clean the filtering equipment inside.

[0037] In the technical solution of the present utility model, although not shown in the figure, a sealing gasket is provided at the connection position between the second connecting tube 9 and the circular hole 15 , which is beneficial to improve the sealing effect at the connection position between the second connecting tube 9 and the circular hole 15 .

[0038] When in use, by hanging the filter 12 on the circular hole 15 of the reduction furnace body 1, impurities in the return water circulating into the reduction furnace body 1 can be filtered, and the circulation pump 8 can be prevented from being blocked by impurities during the circulation process, thereby increasing the service life of the circulation pump 8 and avoiding the need for frequent maintenance of the circulation pump 8. The filter is convenient and practical, and under the action of the filter plate 6, the filtering effect of impurities in the water can be further improved.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filtering device for self-circulation of reduction furnace sewage, characterized in that: The invention comprises a base (2), the top of which is fixedly connected to a reduction furnace body (1), a sewage treatment tank (10) is arranged on one side of the reduction furnace body (1), a through-type circular hole (15) is opened on the outer wall of the reduction furnace body (1) facing the sewage treatment tank (10), a filter (12) is installed at a position of the inner wall of the reduction furnace body (1) corresponding to the circular hole (15), a sewage drainage pipe (5) is fixedly connected between the reduction furnace body (1) and the sewage treatment tank (10), a circulation pump (8) is installed on the top of the sewage treatment tank (10), a water pumping end of the circulation pump (8) is fixedly connected to a first connecting pipe (7), the first connecting pipe (7) is inserted into the interior of the sewage treatment tank (10), a drainage end of the circulation pump (8) is fixedly connected to a second connecting pipe (9), the second connecting pipe (9) is inserted into the interior of the circular hole (15), and a power control board (4) is arranged on the front wall of the base (2).

2. A filtering device for self-circulation of reduction furnace wastewater according to claim 1, characterized in that: The upper and lower ends of the filter (12) are fixedly connected to connecting plates (13), the connecting plates (13) are provided with bolts (11), and the bolts (11) are threadedly connected to the reduction furnace body (1).

3. A filtering device for self-circulation of reduction furnace sewage according to claim 2, characterized in that: The filter screen (12) is a semicircular structure and is made of steel.

4. A filtering device for self-circulation of reduction furnace wastewater according to claim 1, characterized in that: Anti-sliding blocks (3) are fixedly connected to the four corners of the bottom end of the base (2).

5. The filtering device for self-circulation of reduction furnace sewage according to claim 1, characterized in that: A filter screen plate (6) is installed inside the sewage treatment box (10).

6. A filtering device for self-circulation of reduction furnace wastewater according to claim 1, characterized in that: The top of the sewage treatment tank (10) is fixedly connected with an additive feed port.

7. The filtering device for self-circulation of reduction furnace sewage according to claim 1, characterized in that: The reduction furnace body (1) and the front wall of the sewage treatment tank (10) are both rotatably connected to a sealing door (14) via hinges.

8. The filtering device for self-circulation of reduction furnace sewage according to claim 1, characterized in that: A sealing gasket is provided at the connection position between the second connecting pipe (9) and the circular hole (15).

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