CN214634334U - Water pump room system for blast furnace water purification and circulation - Google Patents

Abstract

The application relates to a blast furnace water-circulating pump room system, which belongs to the technical field of blast furnace water-circulating purification and comprises a water tank, a water inlet pipeline communicated with the water tank, a water return pipeline connected with the water tank, a heat exchange pipeline communicated between the water inlet pipeline and the water return pipeline, a water suction pump arranged on the water inlet pipeline and a filtering mechanism arranged between the water return pipeline and the water tank; the filtering mechanism comprises a filtering tank, a filtering net arranged in the filtering tank and a connecting pipeline for communicating the filtering tank with the water tank; the water return pipeline is communicated with the interior of the filter box, the communication port of the water return pipeline and the filter box is positioned above the filter screen, and the communication port of the connecting pipeline and the water return box is positioned below the filter screen. At the in-process that hydrologic cycle flows, water can be filtered by the filter screen before flowing into the water tank again, makes the bold impurity that the aquatic was equipped with detained on the filter screen, can not flow into the water tank again in the circulation, and the impurity volume that contains when making water pass through heat transfer pipeline is less, and heat exchange efficiency is higher.

Description

Water pump room system for blast furnace water purification and circulation

Technical Field

The application relates to the field of clean circulating water of a blast furnace, in particular to a clean circulating water pump room system of the blast furnace.

Background

The clean circulating water for the blast furnace is circulating water for cooling the blast furnace in the operation process, and the heat in the blast furnace is taken out through the circulating flow of the water in the blast furnace so as to realize the cooling purpose of the blast furnace.

The clean circulating water is in closed-loop flow in the flow process, although a large amount of impurities are not easily generated compared with turbid circulating water, a small amount of scale can be formed under the action of high temperature, and the clean circulating water also contains more impurities after long-time operation, so that the heat exchange efficiency of the clean circulating water is influenced.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the filtration of impurities contained in the clean circulating water, the application provides a clean circulating water pump house system of a blast furnace.

The application provides a blast furnace water purification and circulation pump room system adopts following technical scheme:

a blast furnace water purification and circulation pump room system comprises a water tank, a water inlet pipeline communicated with the water system, a water return pipeline connected with the water tank, a heat exchange pipeline communicated between the water inlet pipeline and the water return pipeline, a water suction pump arranged on the water inlet pipeline and a filtering mechanism arranged between the water return pipeline and the water tank; the filtering mechanism comprises a filtering tank, a filtering net arranged in the filtering tank and a connecting pipeline for communicating the filtering tank with the water tank; the water return pipeline is communicated with the interior of the filter box, the communication port of the water return pipeline and the filter box is positioned above the filter screen, and the communication port of the connecting pipeline and the water return box is positioned below the filter screen.

Through adopting above-mentioned technical scheme, in the in-process of blast furnace function, the water in the suction pump takes out the water in the water tank, and absorb the heat in the blast furnace in getting into the heat transfer pipeline through the inlet channel, absorb water behind the heat and flow into the rose box in through the return water pipeline, the filter screen filters the bold impurity that the aquatic contains, make the water after the filtration assemble the rose box bottom, and flow into the water tank again through the connecting tube in, realize the circulation of whole water, at the circulation flow in-process of water, after impurity such as incrustation scale that condenses in the aquatic is too big, can be stopped on the filter screen, reduce the impurity content in the water that gets into the heat transfer pipeline, and the heat exchange efficiency is improved.

Optionally, a water pump is arranged on the connecting pipeline and used for pumping out water in the filter box.

Through adopting above-mentioned technical scheme, send the water pump continuous to take out the water in the rose box in the water tank, increase the speed that rivers flowed out the rose box, make the water level in the rose box be difficult for being higher than the filter screen, guarantee the normal filtering capability of filter screen.

Optionally, the filtering mechanism further comprises a mounting frame arranged in the filtering box, a cover plate arranged at the top of the filtering box, and a lifting mechanism arranged between the cover plate and the filtering box; the connection can be dismantled on the mounting bracket to the filter screen, the opening that can supply mounting bracket and filter screen to pass is seted up at the rose box top, the apron butt seals it on the opening of rose box, mounting bracket and apron fixed connection, elevating system is used for the drive apron to be elevating movement on the rose box.

By adopting the technical scheme, in the normal flowing process of water flow, the cover plate seals the opening at the top of the filter box, so that water cannot be sputtered out of the filter box; when the impurity that is detained on the filter screen is more, can start elevating system and drive the apron rebound, spill the opening of rose box, the apron drives the mounting bracket simultaneously and the filter screen together shifts out from rose box inside, and the staff can pull down the filter screen from the mounting bracket, is convenient for carry out the cleaning work of filter screen.

Optionally, the quantity of filter screen is a plurality of and the equipartition is on the mounting bracket, each the filter screen all can dismantle with the mounting bracket and be connected.

Through adopting above-mentioned technical scheme, reduce the area and the size of each filter screen, make the staff light laborsaving to the installation and the dismantlement of filter screen.

Optionally, the filtering mechanism further comprises a temporary box, a temporary pipeline is communicated with the temporary box, one end, away from the temporary box, of the temporary box is communicated with the water return pipeline, and a three-way valve is arranged at the communication position of the water return pipeline and the temporary pipeline.

Through adopting above-mentioned technical scheme, when clearing up the work to the filter screen, use the flow direction that three-way valve changed rivers, make the rivers in the return water pipeline flow into the temporary incasement and save, need not to stop the flow of rivers when clearing up the filter screen, make the cooling work of clean circulating water pump house system to the blast furnace that lasts, also can not have in the unfiltered water inflow water tank, after the filter screen clearing up work is accomplished, switch over three-way valve once more and can make the water in the return water pipeline continue to flow into the water tank after filtering.

Optionally, a plurality of air release holes are formed in the top wall of the temporary box.

Through adopting above-mentioned technical scheme, when making rivers flow into interim incasement, discharge the air of interim incasement from disappointing the hole, avoid causing interim incasement pressure too big phenomenon, guarantee that hydroenergy can be smooth and easy enough in the interim incasement.

Optionally, still be equipped with water supply pipeline between temporary case and the rose box, water supply pipeline's one end stretches into temporary incasement portion and is connected with the immersible pump, water supply pipeline keeps away from temporary case's one end and rose box intercommunication, and water supply pipeline and rose box intercommunication mouth also are located the filter screen top.

Through adopting above-mentioned technical scheme, after the filter screen cleaning work is accomplished, start the immersible pump, make the immersible pump with the water suction of interim incasement in the water supply pipeline, then in sending into the rose box again through water supply pipeline to make it circulate to the water tank once more behind the filter screen, conveniently carry out recycle to the water of interim incasement.

Optionally, the mounting bracket below has set firmly the baffle, after the mounting bracket upwards shifted out the rose box, the intercommunication mouth of pipeline and rose box is sealed with the baffle.

Through adopting above-mentioned technical scheme, behind the lifting mounting bracket, the baffle seals the intercommunication mouth of water supply pipeline and rose box, when rivers flow into the temporary incasement, can not flow into the rose box through water supply pipeline by oneself to guarantee that the water with impurity is difficult for circulating to flow into in the water tank.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the process of water circulation flow, water can be filtered by the filter screen before flowing into the water tank again, so that large impurities in the water are retained on the filter screen and cannot flow into the water tank again in a circulation mode, the amount of impurities contained in the water passing through the heat exchange pipeline is small, and the heat exchange efficiency is high;

2. the filter screen is conveniently taken out from the filter box for cleaning work through the matching of the lifting mechanism and the cover plate, and the operation of the whole water purification and circulation system is not required to be stopped in the process of cleaning the filter screen under the action of the temporary box;

3. after the filter screen is lifted, the communicating opening of the water feeding pipeline and the filter box is sealed by the baffle, so that water in the temporary box cannot flow into the filter box, unfiltered water cannot flow into the water box again, and the water filtering effect is improved.

Drawings

Fig. 1 is a schematic structural diagram showing a clean water circulating pump house system in an embodiment of the present application.

Fig. 2 is a partial view showing a connection relationship of the filter mechanism and the water tank.

Fig. 3 is a partial sectional view showing the internal structure of the filter tank.

Fig. 4 is an exploded view showing the connection relationship between the mounting frame and the filter net.

Fig. 5 is a partial sectional view showing a connection relationship between the filter tank and the temporary tank.

Description of reference numerals: 1. a water tank; 11. a water inlet pipe; 12. a water pump; 13. a water replenishing pipeline; 14. a control valve; 2. a heat exchange conduit; 21. a water return pipe; 3. a filtering mechanism; 31. a filter box; 311. a support plate; 32. a mounting frame; 321. a connecting rod; 322. a baffle plate; 33. a filter screen; 34. connecting a pipeline; 341. a water pump; 35. a cover plate; 36. a lifting assembly; 37. a temporary box; 371. a temporary pipeline; 372. a three-way valve; 373. an air release hole; 374. a water supply pipeline; 375. a submersible pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a clean circulating water pump room system of a blast furnace.

Referring to fig. 1, the clean circulating water pump house system comprises a water tank 1, a heat exchange pipeline 2 and a filtering mechanism 3, wherein the water tank 1 is used for storing clean circulating water and sending the clean circulating water into the heat exchange pipeline 2; the heat exchange pipeline 2 is used for transferring heat generated during the operation of the blast furnace to water in the blast furnace for heat exchange, and sending the water after heat exchange into the filtering mechanism 3; the filtering mechanism 3 is used for filtering water discharged from the heat exchange pipeline 2 and then sending the water into the water tank 1, so that the impurity content in the clean water in the water tank 1 is reduced, and the heat exchange efficiency of the water in the heat exchange pipeline 2 is improved.

Referring to fig. 2, water tank 1 is inside hollow casing, and the bottom of water tank 1 has set firmly inlet channel 11, and inlet channel 11 and the inside intercommunication of water tank 1, the one end that water tank 1 was kept away from to inlet channel 11 and the water inlet fixed connection and the intercommunication of heat transfer pipeline 2 are equipped with suction pump 12 on the inlet channel 11, make suction pump 12 send into the water in the water tank 1 through inlet channel 11 and carry out heat transfer work in the heat transfer pipeline 2.

Referring to fig. 2, the water outlet of the heat exchange pipeline 2 is fixedly connected and communicated with a water return pipeline 21, one end of the water return pipeline 21, which is far away from the heat exchange pipeline 2, is connected with a filtering mechanism 3, so that the discharged water in the heat exchange pipeline 2 flows into the filtering mechanism 3 through the water return pipeline 21, and after impurities in the water are filtered by the filtering mechanism 3, the water flows into the water tank 1 again in a circulating manner, thereby achieving the purpose of reducing the content of the impurities in the water tank 1.

Referring to fig. 2, because there is some net circulating water loss in the whole circulation flow, the amount of net circulating water in the whole system can be reduced gradually, in order to timely replenish water when the amount of water in the system is less, the top of the water tank 1 is still fixedly communicated with a water replenishing pipeline 13, a control valve 14 is arranged on the water replenishing pipeline 13, the external water source and the water replenishing pipeline 13 can be communicated when the amount of water in the water tank 1 is less, and the control valve 14 is opened, and the external water is sent into the water tank 1 for water replenishing operation.

Referring to fig. 2 and 3, the filtering mechanism 3 includes a filtering tank 31, a mounting frame 32, a plurality of filtering nets 33, a connecting pipe 34 and a water feeding pump 341, the filtering tank 31 is also a hollow shell structure, and one end of the water returning pipe 21 far away from the heat exchanging pipe 2 is fixedly connected and communicated with the top of the filtering tank 31.

Referring to fig. 4 again, inside rose box 31 was arranged in to mounting bracket 32, mounting bracket 32 was the grid structure of the mutual welding formation of a plurality of models, and filter screen 33 equipartition is on mounting bracket 32, and each filter screen 33 corresponds a net of mounting bracket 32, and all filter screens 33 all are located same horizontal plane, and filter screen 33 butt is on mounting bracket 32's top surface and through a plurality of bolt fastening on mounting bracket 32, and the intercommunication mouth of return water pipe 21 and rose box 31 is located the top of filter screen 33. One end of the connecting pipeline 34 is fixedly connected and communicated with the bottom of the filter tank 31, and the communicating port of the connecting pipeline 34 and the filter tank 31 is positioned below the filter tank 31; one end of the connecting pipeline 34 far away from the filter tank 31 is fixedly connected and communicated with the water tank 1, a water feeding pump 341 is further arranged on the connecting pipeline 34, and the water feeding pump 341 is used for feeding water in the filter tank 31 into the water tank 1 through the connecting pipeline 34.

After water in the water return pipe 21 flows into the filter tank 31, the water flows through the filter screen 33 and then flows to the bottom of the filter tank 31, the water can be collected on the filter screen 33 with large impurities when passing through the filter screen 33, and the water is pumped into the water tank 1 again by the water feeding pump 341 after the filtered water is collected at the bottom of the filter tank 31, so that the purpose of filtering the water is achieved. And under the effect of water feeding pump 341, can send into water tank 1 by the filterable water in rose box 31 fast, the difficult phenomenon that the interior water level of rose box 31 is higher than filter screen 33 and influences filtration efficiency appears.

Referring to fig. 3, the filtering efficiency is also affected after the impurities on the filtering net 33 are more, so that the impurities on the filtering net 33 can be cleaned conveniently: an opening is formed in the top of the filter box 31, the mounting frame 32 and the filter screen 33 can penetrate through the opening, and the circumferential side wall of the mounting frame 32 is abutted to the inner side wall of the filter box 31, so that the mounting frame 32 can slide in the vertical direction inside the filter box 31. The top of the filter box 31 is further provided with a cover plate 35, and the cover plate 35 abuts against the opening of the filter box 31 to seal the opening, so that water in the filtering process cannot be splashed out of the outside from the opening of the filter box 31. A plurality of connecting rods 321 have set firmly on the circumference border at mounting bracket 32 top, and connecting rod 321 winds the circumference equipartition of mounting bracket 32, and the top and the apron 35 bottom surface fixed connection of connecting rod 321 are equipped with lifting unit 36 between apron 35 and the rose box 31, and lifting unit 36 can drive apron 35 and do the removal that is close to or keeps away from rose box 31.

When cleaning work is carried out to filter screen 33, use lifting unit 36 to drive apron 35 rebound, make the opening of rose box 31 open, apron 35 takes out mounting bracket 32 and filter screen 33 from rose box 31 simultaneously, and the staff can pull down filter screen 33 from mounting bracket 32 and carry out cleaning work.

Referring to fig. 2 and 3, lifting unit 36 adopts a scissor lift, a support plate 311 is fixedly arranged on the outer side wall of the circumferential direction of filter box 31, support plate 311 is positioned below cover plate 35 and is parallel to cover plate 35, scissor lift mechanism is installed between support plate 311 and cover plate 35, the lifting action of cover plate 35 is realized through the operation of scissor lift, and scissor lift has the advantages of large movement stroke and high movement stability, and good and stable driving force is provided for the lifting of mounting frame 32 and filter screen 33.

Since the water entering the filter tank 31 cannot be filtered in the process of cleaning the filter screen 33, if the circulation flow of the clean circulating water is stopped, the normal operation of the blast furnace is affected, and in order to prevent the unfiltered water from flowing into the water tank 1 and maintain the normal heat exchange of the clean circulating water, the filter mechanism 3 further comprises a temporary tank 37, and the water in the water return pipe 21 is discharged out of the temporary tank 37 for temporary storage when the filter screen 33 is cleaned.

Referring to fig. 2 and 5, the temporary tank 37 is also a hollow shell structure, a temporary pipeline 371 is fixedly arranged on the temporary tank 37 and is communicated with the temporary tank, one end of the temporary pipeline 371, which is far away from the temporary tank 37, is fixedly connected and communicated with the water return pipeline 21, a three-way valve 372 is arranged at the connection position of the water return pipeline 21 and the temporary pipeline 371, and the flow direction of water in the water return pipeline 21 can be switched through the three-way valve 372.

When the filtering mechanism 3 is in normal operation, the water in the water return pipe 21 only flows into the filtering tank 31 under the action of the three-way valve 372; when the cleaning work of filter screen 33 is carried out, three-way valve 372 is used for changing the water flow direction, so that the water in water return pipe 21 is converted to flow in temporary pipe 371, and flows into temporary box 37 through temporary pipe 371, and the temporary storage function of water is realized.

Referring to fig. 5, a plurality of air release holes 373 are further formed in the top wall of the temporary tank 37, so that when the water level in the temporary tank 37 rises, air in the temporary tank 37 is discharged from the air release holes 373, the phenomenon of over-high pressure cannot occur in the temporary tank 37, and the smoothness of water flow in the water return pipe 21 and the temporary pipe 371 is ensured.

Referring to fig. 5, the temporary tank 37 is further provided with a water supply pipe 374, one end of the water supply pipe 374 penetrates through the side wall of the temporary tank 37 and extends to the bottom of the inner side of the temporary tank 37, a submersible pump 375 is arranged at one end of the water supply pipe 374 located in the temporary tank 37, and one end of the water supply pipe 374 located in the temporary tank 37 is fixedly connected and communicated with the top of the filter tank 31.

After the cleaning work of filter screen 33 is finished, make filter screen 33 reset to switch the three-way ball valve, make the water in the return water pipeline 21 flow into the rose box 31 again and filter, start immersible pump 375 simultaneously, send the inside water of interim case 37 into the rose box 31 through water supply pipeline 374 and filter, be convenient for retrieve fast to the water in the interim case 37.

Referring to fig. 5, the bottom of the mounting bracket 32 is fixedly provided with the baffle 322, the baffle 322 abuts against and slides on the inner side wall of the filter box 31, and after the mounting bracket 32 is lifted, the baffle 322 moves to the position of the communication port of the water feeding pipeline 374 and the filter box 31 to close the communication port of the water feeding pipeline 374, so that water in the temporary box 37 is not easy to flow into the filter box 31 through the water feeding pipeline 374, and water with impurities is not easy to flow into the water tank 1.

The implementation principle of the blast furnace water purification and circulation pump room system in the embodiment of the application is as follows: before the clean circulating water flows into the water tank 1 again after heat exchange is finished, the clean circulating water is filtered by the filter screen 33, and large impurities contained in the clean circulating water are removed, so that the content of the impurities in the clean circulating water in the water tank 1 is low, namely the content of the clean circulating water flowing in the heat exchange pipeline 2 is low, and the heat exchange efficiency is improved; the filter net 33 can be moved out of the filter tank 31 by the lifting component 36 so as to clean the filter tank 31 regularly, and the unfiltered water can be temporarily stored in the temporary tank 37 when the filter net 33 is cleaned, so that the unfiltered water can not flow into the water tank 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a blast furnace water pump room system that circulates that purifies which characterized in that: comprises a water tank (1), a water inlet pipeline (11) communicated with a water system, a water return pipeline (21) connected with the water tank (1), a heat exchange pipeline (2) communicated between the water inlet pipeline (11) and the water return pipeline (21), a water suction pump (12) arranged on the water inlet pipeline (11) and a filtering mechanism (3) arranged between the water return pipeline (21) and the water tank (1);

the filtering mechanism (3) comprises a filtering box (31), a filtering net (33) arranged in the filtering box (31) and a connecting pipeline (34) for communicating the filtering box (31) with the water tank (1); the water return pipeline (21) is communicated with the inside of the filter tank (31), a communication port of the water return pipeline (21) and the filter tank (31) is positioned above the filter screen (33), and a communication port of the connecting pipeline (34) and the water return tank (1) is positioned below the filter screen (33).

2. The blast furnace water pump room system of claim 1, wherein: a water feeding pump (341) is arranged on the connecting pipeline (34), and the water feeding pump (341) is used for pumping out water in the filter tank (31).

3. The blast furnace water pump room system of claim 1, wherein: the filtering mechanism (3) further comprises a mounting frame (32) arranged in the filtering box (31), a cover plate (35) arranged at the top of the filtering box (31) and a lifting mechanism arranged between the cover plate (35) and the filtering box (31);

filter screen (33) can be dismantled and connect on mounting bracket (32), the opening that can supply mounting bracket (32) and filter screen (33) to pass is seted up at rose box (31) top, apron (35) butt seals it on the opening of rose box (31), mounting bracket (32) and apron (35) fixed connection, elevating system is used for driving apron (35) and is elevating movement on rose box (31).

4. The blast furnace water pump room system of claim 3, wherein: the quantity of filter screen (33) is a plurality of and the equipartition is on mounting bracket (32), each filter screen (33) all can dismantle with mounting bracket (32) and be connected.

5. The blast furnace water pump room system of claim 3, wherein: filtering mechanism (3) still include interim case (37), the intercommunication has interim pipeline (371) on interim case (37), the one end and return water pipe (21) intercommunication of interim case (37) are kept away from to interim pipeline (371), and return water pipe (21) and interim pipeline (371) intercommunication department are equipped with three way valve (372).

6. The blast furnace water pump room system of claim 5, wherein: the top wall of the temporary box (37) is provided with a plurality of air release holes (373).

7. The blast furnace water pump room system of claim 5, wherein: still be equipped with between interim case (37) and rose box (31) water supply pipeline (374), the one end of water supply pipeline (374) stretches into interim case (37) inside and is connected with immersible pump (375), the one end and the rose box (31) intercommunication that interim case (37) was kept away from in water supply pipeline (374), and water supply pipeline (374) and rose box (31) intercommunication mouth also are located filter screen (33) top.

8. The blast furnace water pump room system of claim 7, wherein: the baffle (322) is fixedly arranged below the mounting frame (32), the mounting frame (32) is moved out of the filter box (31) upwards, and the communicating opening between the water feeding pipeline (374) and the filter box (31) is sealed by the baffle (322).

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