CN212440171U

CN212440171U - Deslagging circulation system

Info

Publication number: CN212440171U
Application number: CN202020480051.XU
Authority: CN
Inventors: 李亚冰; 罗宝龙; 赵建明
Original assignee: Chongqing CISDI Thermal and Environmental Engineering Co Ltd
Current assignee: Chongqing CISDI Thermal and Environmental Engineering Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-02-02
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to a sediment circulation system belongs to metallurgical technical field. Comprises a water seal tank and a sedimentation tank arranged below the water seal tank; one end of the water-sealed tank is provided with a slag discharge pipeline, and the slag discharge pipeline is inserted into the sedimentation tank to discharge the slag-water mixture in the water-sealed tank into the sedimentation tank; the other end of the water seal tank is provided with a water return pipeline, the water return pipeline is inserted into the sedimentation tank, and water separated by the sedimentation tank is lifted into the water seal tank through a circulating water pump which is arranged in the sedimentation tank and connected with the water return pipeline. The system realizes the circular flow of water in the water seal tank, is favorable for thoroughly discharging accumulated slag, prevents the accumulated slag from hardening in the water seal tank, and maintains the cleanness of the water in the water seal tank, thereby ensuring the normal performance of the sealing and isolating functions of the water seal tank.

Description

Deslagging circulation system

Technical Field

The utility model belongs to the technical field of the metallurgy, a arrange sediment circulation system is related to.

Background

In the metallurgical industry, high-temperature heating equipment such as heating furnaces, high-temperature carbon-containing metal pellet reduction equipment and the like are required to be provided with water seal tanks, so that the isolation of the atmosphere in the furnaces from the external environment is ensured. In above-mentioned high temperature heating equipment, there are a large amount of dusts in the stove, and these dusts fall into the water sealed tank gradually and form long-pending sediment such as silt form, granule, simultaneously because the particularity of the dress ejection of compact, also have more material and fall into the water sealed tank at the dress ejection of compact in-process, cause long-pending sediment more in the water sealed tank, and the material characteristic of long-pending sediment is complicated. If the accumulated slag can not be effectively discharged, the accumulated slag can be accumulated and hardened in the water seal tank, and the water seal tank loses the function of isolating furnace gas, so the consequence is very serious.

The existing slag discharging means is to fish out the accumulated slag in the water seal tank through mechanical slag discharging equipment, the water in the water seal tank is not circulated, and due to the limitation of the mechanical slag discharging equipment, the sludge-shaped accumulated slag is not easy to discharge and is easy to block and break down, and the bottom of the water seal tank still can remain part of the sludge-shaped accumulated slag and cannot be discharged, so that the water seal tank still can be hardened in the water seal tank for a long time.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a arrange sediment circulation system that degree of automation is high, simple structure, the clean thorough sediment effect of arranging, through the hydrologic cycle circulation with the water seal inslot, arrange the sediment and do not thoroughly arouse the long-pending sediment to harden and lead to the problem of water seal tank loss isolation stove gas function among the solution prior art high temperature heating equipment's water seal inslot.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a slag discharge circulating system comprises a water seal tank and a sedimentation tank arranged below the water seal tank; one end of the water-sealed tank is provided with a slag discharge pipeline, and the slag discharge pipeline is inserted into the sedimentation tank to discharge the slag-water mixture in the water-sealed tank into the sedimentation tank; the other end of the water seal tank is provided with a water return pipeline, the water return pipeline is inserted into the sedimentation tank, and water separated by the sedimentation tank is lifted into the water seal tank through a circulating water pump which is arranged in the sedimentation tank and connected with the water return pipeline.

And the water replenishing pipeline is communicated with the plant area water replenishing pipe network and points to the notch of the water seal tank so as to replenish new water into the water seal tank.

Furthermore, a movable slag scraping mechanism is arranged in the water seal tank to convey the accumulated slag in the water seal tank to a slag discharge pipeline.

Furthermore, a water seal tank liquid level meter is arranged in the water seal tank, and a return water regulating valve is arranged on a section of the return water pipeline exposed out of the sedimentation tank.

Further, be equipped with the sedimentation tank level gauge in the sedimentation tank, be equipped with the moisturizing governing valve on the moisturizing pipeline.

Further, a slag discharge cut-off valve is arranged on the slag discharge pipeline.

Further, the sedimentation tank includes a sedimentation zone and a clean water zone, the slag discharge pipe is inserted into the sedimentation zone of the sedimentation tank, the water return pipe is inserted into the clean water zone of the sedimentation tank, and the circulating water pump is arranged in the clean water zone of the sedimentation tank.

The beneficial effects of the utility model reside in that:

(1) the utility model discloses communicate water seal tank and sedimentation tank, discharge the sedimentation tank through the sediment pipeline with the sediment water mixture of water seal tank in, the sedimentation tank deposits the sediment water mixture, separation treatment, pass through circulating water pump with the return water pipeline that links to each other rather than the clean clear water that will separate and send back water seal tank in, the circulation flow of water seal tank water has been realized, be favorable to the long-pending sediment of thoroughly discharging, prevent long-pending sediment from hardening in water seal tank, maintain the clean of water seal tank water, thereby guarantee water seal tank is sealed, the normal performance of isolated function.

(2) The utility model discloses a water seal tank level gauge real-time supervision water seal tank liquid level according to the aperture of water seal tank level gauge feedback data automatic adjustment return water governing valve to adjustment return water flow, guarantee that the water seal tank liquid level is stable, realize arranging the dynamic balance of sediment, return water.

(3) The utility model discloses a sedimentation tank level gauge real-time supervision sedimentation tank liquid level, when the sedimentation tank liquid level was crossed low, the automatic moisturizing governing valve of opening is to the water seal inslot water injection, for the system supply new water.

(4) The utility model discloses degree of automation is high, and system's simple structure, economy is reliable.

Drawings

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention provides the following drawings for illustration:

fig. 1 is a schematic structural view of a slag discharge circulation system.

Reference numerals: the device comprises a water seal tank 1, a slag discharge pipeline 2, a slag discharge cut-off valve 3, a sedimentation tank 4, a circulating water pump 5, a water return pipeline 6, a water return regulating valve 7, a water supply pipeline 8, a water supply regulating valve 9, a sedimentation tank liquid level meter 10, a water seal tank liquid level meter 11, a movable slag scraping mechanism 12, sediment 13 and an overflow port 14.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment provides a slag discharging circulation system, which includes a water-sealed tank 1 and a sedimentation tank 4 disposed below the water-sealed tank 1; one end of the water-sealed tank 1 is provided with a slag discharge pipeline 2, and the slag discharge pipeline 2 is inserted into the sedimentation tank 4 so as to discharge the slag-water mixture in the water-sealed tank 1 into the sedimentation tank 4; the other end of water seal tank 1 is equipped with return water pipe 6, return water pipe 6 injects sedimentation tank 4 to through set up in sedimentation tank 4 with the continuous circulating water pump 5 of return water pipe 6, promote the water that separates through sedimentation tank 4 to in the water seal tank 1.

Specifically, the sedimentation tank 4 comprises a sedimentation area and a clear water area, the slag discharge pipeline 2 is inserted into the sedimentation area of the sedimentation tank 4, the water return pipeline 6 is inserted into the clear water area of the sedimentation tank 4, and the circulating water pump 5 is arranged in the clear water area of the sedimentation tank 4. An overflow port 14 is arranged on the wall of the sedimentation tank 4 above the normal liquid level position of the sedimentation tank 4. The slag discharging circulation system further comprises a water supplementing pipeline 8, wherein the water supplementing pipeline 8 is communicated with a water supplementing pipe network of a plant area and points to the notch of the water seal tank 1 so as to supplement new water into the water seal tank 1. A sedimentation tank liquid level meter 10 is arranged in a clear water area of the sedimentation tank 4, and a water supplementing regulating valve 9 for controlling the water supplementing on-off state and the flow is arranged on the water supplementing pipeline 8. A water seal tank liquid level meter 11 is arranged in the water seal tank 1, and a return water regulating valve 7 for controlling the on-off state and the flow rate of return water is arranged on the section of the return water pipeline 6 exposed out of the sedimentation tank 4. A movable slag scraping mechanism 12 is arranged in the water seal tank 1 to convey the accumulated slag in the water seal tank 1 to the slag discharge pipeline 2. And a slag discharge cut-off valve 3 for controlling the on-off state of slag discharge is arranged on the slag discharge pipeline 2.

When the deslagging circulation system is started for the first time, clean water is respectively injected into the water seal tank 1 and the sedimentation tank 4 until the liquid level of the water seal tank and the liquid level of the sedimentation tank reach normal levels respectively; then, opening a slag discharge cut-off valve 3 to enable a slag discharge pipeline 2 to be in a conducting state, enabling the slag-water mixture in the water seal tank 1 to flow towards the slag discharge pipeline 2 under the action of a movable slag scraping mechanism 12 and flow into a precipitation area of a precipitation tank 4 through the slag discharge pipeline 2, precipitating deposited slag in the slag-water mixture in the precipitation area towards the bottom of the tank to form a precipitate 13, and separating water in the slag-water mixture to enter a clear water area of the precipitation tank 4; synchronously opening a circulating water pump 5 to send water in a clear water area back to the water seal tank 1 through a water return pipeline 6, simultaneously monitoring the liquid level of the water seal tank by a water seal tank liquid level meter 11 in real time, and returning monitoring data to an automatic control system, wherein the automatic control system controls the opening of a return water regulating valve 7 according to the feedback data of the water seal tank liquid level meter 11 so as to adjust the flow rate of return water, ensure the liquid level of the water seal tank to be stable and realize the dynamic balance of slag discharge and return water; in addition, sedimentation tank level gauge 10 is monitoring the sedimentation tank liquid level in real time to return monitoring data for automatic control system, if the sedimentation tank liquid level is too high, then discharge from overflow mouth 14, if the sedimentation tank liquid level is too low, automatic control system controls the aperture of moisturizing governing valve 9 according to sedimentation tank level gauge 10 feedback data, with suitable flow to water injection in water seal tank 1, for the system supply new water.

The deslagging circulation system realizes the circulating flow of water in the water seal tank 1, the accumulated slag is completely discharged outside the water seal tank 1 through circulating water to carry out slag-water separation, granular and sludge-shaped accumulated slag in the water seal tank 1 can be removed, and the deslagging effect is good. The system has high automation degree, realizes automatic unmanned operation of the system by means of an automatic control system and valve components, reduces the manual strength, and is convenient to overhaul and maintain by continuous or discontinuous operation according to the slag accumulation condition.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A slag discharge circulation system is characterized by comprising a water seal tank and a sedimentation tank arranged below the water seal tank; one end of the water-sealed tank is provided with a slag discharge pipeline, and the slag discharge pipeline is inserted into the sedimentation tank to discharge the slag-water mixture in the water-sealed tank into the sedimentation tank; the other end of the water seal tank is provided with a water return pipeline, the water return pipeline is inserted into the sedimentation tank, and water separated by the sedimentation tank is lifted into the water seal tank through a circulating water pump which is arranged in the sedimentation tank and connected with the water return pipeline.

2. The slagging cycle system according to claim 1, further comprising a water replenishing pipe connected to the plant area water replenishing pipe network and directed to the notch of the water seal tank to replenish fresh water into the water seal tank.

3. The slagging cycle system according to claim 1, wherein a movable slag scraping mechanism is provided in the water-sealed tank to convey the accumulated slag in the water-sealed tank to the slagging pipeline.

4. The slagging circulation system according to claim 1, wherein a water seal tank level meter is provided in the water seal tank, and a return water regulating valve is provided on a section of the return water pipe exposed out of the sedimentation tank.

5. The slagging circulation system according to claim 2, wherein a sedimentation tank level gauge is provided in the sedimentation tank, and a water replenishing regulating valve is provided on the water replenishing pipeline.

6. The slagging circulation system according to claim 1, wherein the slagging pipeline is provided with a slagging shut-off valve.

7. The slag discharge circulation system according to claim 1, wherein the settling tank includes a settling zone and a clean water zone, the slag discharge pipe is inserted into the settling zone of the settling tank, the water return pipe is inserted into the clean water zone of the settling tank, and the circulation water pump is provided in the clean water zone of the settling tank.