CN218994064U - Cooling water circulation system of side-blowing furnace - Google Patents

Abstract

The utility model provides a side-blown boiler cooling water circulation system, which comprises an upper water jacket cooling water tank and an upper water jacket water supply tank arranged above the upper water jacket cooling water tank, wherein the upper water jacket cooling water tank is in sealing connection with the upper water jacket water supply tank through a pipeline, and further comprises a first water separator connected with the upper water jacket water supply tank; the water cooling device further comprises a lower water jacket water supply tank, a lower water jacket cooling tower arranged above the lower water jacket water supply tank, a second water separator connected with the lower water jacket water supply tank, and a water inlet pipe connected with the lower water jacket water supply tank; the water tank is connected with the upper water jacket cooling water tank and the lower water jacket water supply tank through the first connecting pipe and the second connecting pipe respectively. The utility model solves the problem that in the prior art, scale is easy to generate in the system, so that the system is difficult to clean after blockage.

Description

Cooling water circulation system of side-blowing furnace

Technical Field

The utility model relates to the technical field of cooling water circulation systems, in particular to a side-blown converter cooling water circulation system.

Background

The pyrometallurgical industry usually adopts an oxygen-enriched side-blowing mode to smelt, a large amount of heat can be generated in the production process, and the temperature of the steel and copper water jackets is higher during the production of the side-blowing furnace. Therefore, the circulating water cooling is needed to protect the water jacket from production accidents.

At present, a side-blown converter is generally provided with a plurality of upper water jackets (molten steel jackets) and a plurality of lower water jackets (copper water jackets), wherein the upper water jackets and the lower water jackets are generally cooled by circulating cold water, and the consumption of the cooling water is huge, so that scale generated in a system is easy to cause blockage (scale is easy to generate in a pipeline, the upper water jackets and the lower water jackets), and cleaning is difficult to perform after blockage.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a cooling water circulation system of a side-blown furnace, which solves the problem that in the prior art, scale is easy to generate in the system, so that the system is difficult to clean after being blocked.

According to the embodiment of the utility model, the side-blown converter cooling water circulation system comprises an upper water jacket cooling water tank and an upper water jacket water supply tank arranged above the upper water jacket cooling water tank, wherein the upper water jacket cooling water tank is in sealing connection with the upper water jacket water supply tank through a pipeline, and the side-blown converter cooling water circulation system further comprises a first water separator connected with the upper water jacket water supply tank, wherein the first water separator is also connected with a plurality of upper water jacket water inlet pipes, each upper water jacket water inlet pipe is respectively connected with one upper water jacket, and all upper water jackets are connected with the upper water jacket cooling water tank after being collected;

the water distributor also comprises a plurality of lower water jacket water inlet pipes, each lower water jacket water inlet pipe is respectively connected with one lower water jacket, and all the lower water jackets are connected with the lower water jacket cooling tower after being collected; the water tank is connected with the upper water jacket cooling water tank and the lower water jacket water supply tank through the first connecting pipe and the second connecting pipe respectively.

In the above-mentioned embodiment, the pure water tank that sets up is loaded and is through the soft water after purifying, carries out circulative cooling to upper water jacket and lower water jacket respectively through soft water, consequently can avoid producing the incrustation scale, has solved the system in the prior art and has easily produced the incrustation scale and has led to the difficult abluent problem after blockking up.

Further, still include rainwater collecting tank, former water tank and the purification subassembly that links to each other in proper order, purification subassembly still is connected with the pure water case.

Further, the water tank further comprises a water slag pool, and the upper water jacket cooling water tank and the lower water jacket water supply tank are connected with the water slag pool through a third connecting pipe and a fourth connecting pipe respectively.

Further, the grain slag pool is also connected with a rainwater collecting pool.

Further, the temperature transmitter and the electronic floating ball level gauge are arranged on one side of the upper water jacket cooling water tank, the upper water jacket water supply tank, the lower water jacket cooling tower and the lower water jacket water supply tank.

Further, solenoid valves are arranged on the upper water jacket water inlet pipe and the lower water jacket water inlet pipe.

Further, all the upper water jackets are connected with a first water collector together, and the first water collector is connected with an upper water jacket cooling water tank through a fifth connecting pipe;

all the lower water jackets are connected with a second water collector together, and the second water collector is connected with a lower water jacket cooling tower through a sixth connecting pipe.

Compared with the prior art, the utility model has the following beneficial effects:

the purified soft water is loaded in the pure water tank and is circulated and cooled through the upper water jacket and the lower water jacket respectively, so that scale can be prevented from being generated, and the problem that the system is difficult to clean after blockage due to easy scale generation in the prior art is solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the partial structure at A in FIG. 1;

in the above figures:

an upper water jacket cooling water tank 1, an upper water jacket water supply tank 2, a first water separator 3, an upper water jacket 4, a lower water jacket water supply tank 5, a lower water jacket cooling tower 6, a second water separator 7, a lower water jacket 8, a pure water tank 9, a rainwater collecting tank 10, a raw water tank 11, a water slag tank 12, an electronic floating ball level gauge 13, a temperature transmitter 14, a first water collector 15 and a second water collector 16.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 and 2, the present embodiment provides a cooling water circulation system of a side-blown furnace, which includes an upper water jacket cooling water tank 1 and an upper water jacket water supply tank 2 disposed above the upper water jacket cooling water tank 1, wherein the upper water jacket cooling water tank 1 and the upper water jacket water supply tank 2 are connected through a pipeline in a sealing manner, and further includes a first water separator 3 connected with the upper water jacket water supply tank 2, wherein the first water separator 3 is also connected with a plurality of upper water jacket water inlet pipes, each upper water jacket water inlet pipe is respectively connected with one upper water jacket 4, and all the upper water jackets 4 are connected with the upper water jacket cooling water tank 1 together after being collected;

the water cooling device further comprises a lower water jacket water supply tank 5, a lower water jacket cooling tower 6 arranged above the lower water jacket water supply tank 5, a second water separator 7 connected with the lower water jacket water supply tank 5, a plurality of lower water jacket water inlet pipes connected with each lower water jacket water inlet pipe respectively, and all the lower water jackets 8 are connected with the lower water jacket cooling tower 6 after being gathered; the water purifier also comprises a pure water tank 9, wherein the pure water tank 9 is connected with the upper water jacket cooling water tank 1 and the lower water jacket water supply tank 5 through a first connecting pipe and a second connecting pipe respectively.

In the above embodiment, purified soft water is loaded in the pure water tank 9, and the upper water jacket 4 and the lower water jacket 8 are respectively cooled in a circulating way by the soft water, so that scale can be avoided, and the problem that in the prior art, the system is difficult to clean after blockage due to scale is easily generated is solved; further, the embodiment further comprises a rainwater collecting tank 10, a raw water tank 11 and a purifying component which are sequentially connected, wherein the purifying component is also connected with the pure water tank 9, the embodiment further comprises a water slag tank 12, the upper water jacket cooling water tank 1 and the lower water jacket water supply tank 5 are respectively connected with the water slag tank 12 through a third connecting pipe and a fourth connecting pipe, the water slag tank 12 is also connected with the rainwater collecting tank 10, the rainwater collecting tank 10 is used for collecting rainwater and wastewater in the water slag tank 12, the rainwater collecting tank is pumped to the raw water tank 11 through a rainwater pump, the raw water pump is pumped into the purifying component for purifying, specifically, the water is filtered through quartz sand filtering, activated carbon filtering, a scale inhibitor and a security filter in sequence, then enters reverse osmosis water treatment equipment for treatment, and finally soft water is obtained and stored in the pure water tank 9; soft water stored in the pure water tank 9 is pumped into the upper water jacket cooling water tank 1 and the lower water jacket water supply tank 5 by pure water pumps, respectively, so that a subsequent cooling operation can be performed.

As shown in fig. 1 and 2, the upper water jacket cooling water tank 1, the upper water jacket water supply tank 2 and the lower water jacket water supply tank 5 are provided with a temperature transmitter 14 and an electronic floating ball liquid level meter 13, and the upper water jacket water inlet pipe and the lower water jacket water inlet pipe are provided with electromagnetic valves, and further, the electromagnetic valves, the temperature transmitter 14 and the electronic floating ball liquid level meter 13 are electrically connected with a PLC controller so that the electromagnetic valves, the temperature transmitter 14 and the electronic floating ball liquid level meter 13 can be controlled in a linkage way.

As shown in fig. 1 and 2, all the upper water jackets 4 are connected with a first water collector 15 together, the first water collector 15 is connected with the upper water jacket cooling water tank 1 through a fifth connecting pipe, and further, a first back flushing pump is arranged on the fifth connecting pipe in parallel;

all the lower water jackets 8 are connected with the second water collector 16 together, the second water collector 16 is connected with the lower water jacket cooling tower 6 through a sixth connecting pipe, and further, a second backwash pump is arranged on the sixth connecting pipe in parallel.

As shown in fig. 1 and 2, the system provided in this embodiment is in operation:

after the rainwater is collected by the rainwater collecting tank 10, the rainwater is pumped into the raw water tank 11; then the softened water making device is started to start the softened water making process: raw water tank 11-raw water pump-quartz sand filtration-activated carbon filtration-adding scale inhibitor-cartridge filter-reverse osmosis-pure water tank 9; when the pure water tank 9 stores 2/3 of the pure water, the circulation system is started.

Specifically, when the water level reaches 1/3 of the upper water jacket water supply tank 2 and the lower water jacket water supply tank 5, at the moment, the liquid level meters of the upper water jacket water supply tank 2 and the lower water jacket water supply tank are interlocked with the electromagnetic valves of the upper water jacket water supply tank 2 and the lower water jacket water supply tank, and then the water jacket softening water pump is started to supply water to the water pump, wherein the upper water jacket 4 adopts a steel water jacket (the requirement on the circulating water pressure is not high), and the upper water jacket water supply tank 2 automatically flows into the steel water jacket and then flows into the upper water jacket cooling water tank 1;

the lower water jacket 8 is a buried pipe type copper water jacket, the water supply pressure is 0.4Mpa through the variable frequency pump and the back pressure valve, the water supply pipeline is provided with a check valve, and the back pressure valve is connected in parallel to the pipeline for regulating and controlling the water pressure; when the water level reaches 2/3 of the upper water jacket water supply tank 2 and the lower water jacket water supply tank 5, the pump is automatically turned off; the water pressure is evenly divided after being pumped to the second water separator 7 and then enters the buried pipe type copper water jacket, wherein an inner water pipe and an outer water pipe of the buried pipe type water jacket are connected in series, the inner water pipe and the outer water pipe are connected in parallel, finally, the water is converged to the second water collector 16 and then enters the lower water jacket cooling tower 6 for cooling, and in addition, a metal hose is adopted as a pipeline in the second water separator 7, so that the water jacket is convenient to detach or maintain in the future. The waste heat in the circulating water of the water jacket is exchanged with air through the annular collecting fan by the lower water jacket cooling tower 6, and then the waste heat enters the atmosphere, wherein the lower water jacket cooling tower 6 enters the lower water jacket water supply tank 5 through self-flowing, an electric proportional valve and a flowmeter are arranged on a self-flowing pipeline, the electric proportional valve is interlocked with the water jacket softened water supply flowmeter, and the flow rate has a proportionality coefficient of 0.8-1.2 to control the self-flowing electric proportional valve of the cooling water.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (7)

1. The side-blown boiler cooling water circulation system is characterized by comprising an upper water jacket cooling water tank and an upper water jacket water supply tank arranged above the upper water jacket cooling water tank, wherein the upper water jacket cooling water tank is in sealing connection with the upper water jacket water supply tank through a pipeline, and the side-blown boiler cooling water circulation system further comprises a first water separator connected with the upper water jacket water supply tank, wherein the first water separator is also connected with a plurality of upper water jacket water inlet pipes, each upper water jacket water inlet pipe is respectively connected with one upper water jacket, and all upper water jackets are connected with the upper water jacket cooling water tank after being collected;

the water distributor also comprises a plurality of lower water jacket water inlet pipes, each lower water jacket water inlet pipe is respectively connected with one lower water jacket, and all the lower water jackets are connected with the lower water jacket cooling tower after being collected; the water tank is connected with the upper water jacket cooling water tank and the lower water jacket water supply tank through the first connecting pipe and the second connecting pipe respectively.

2. The side-blown boiler cooling water circulation system of claim 1, further comprising a rainwater collection tank, a raw water tank and a purification assembly connected in sequence, the purification assembly further connected with the pure water tank.

3. The side-blown furnace cooling water circulation system of claim 2, further comprising a water slag pool, wherein the upper water jacket cooling water tank and the lower water jacket water supply tank are connected to the water slag pool through a third connection pipe and a fourth connection pipe, respectively.

4. A side-blown converter cooling water circulation system according to claim 3, wherein the water and slag tank is further connected to a rainwater collection tank.

5. The side-blown converter cooling water circulation system according to claim 1, wherein the upper water jacket cooling water tank, the upper water jacket water supply tank, the lower water jacket cooling tower and the lower water jacket water supply tank are provided with a temperature transmitter and an electronic floating ball level gauge.

6. The cooling water circulation system of the side-blown converter according to claim 5, wherein the upper water jacket water inlet pipe and the lower water jacket water inlet pipe are respectively provided with electromagnetic valves.

7. The side-blown converter cooling water circulation system according to any one of claims 1 to 6, wherein all the upper water jackets are connected together with a first water collector, and the first water collector is connected with an upper water jacket cooling water tank through a fifth connecting pipe;

all the lower water jackets are connected with a second water collector together, and the second water collector is connected with a lower water jacket cooling tower through a sixth connecting pipe.

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