CN214830437U

CN214830437U - Automatic spraying system for steel slag hot-disintegration process treatment

Info

Publication number: CN214830437U
Application number: CN202120875383.2U
Authority: CN
Inventors: 杨波; 刘晓亮
Original assignee: Rizhao Taidong Environmental Protection Technology Co ltd
Current assignee: Rizhao Taidong Environmental Protection Technology Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-23
Anticipated expiration: 2031-04-26

Abstract

An automatic spraying system used for steel slag hot-disintegrating process treatment relates to the field of multidirectional automatic spraying machinery, and comprises a spraying box, wherein the upper surface of the spraying box is rotatably connected with a sealing cover, a driving deflection mechanism is slidably matched on the sealing cover, a spraying head is arranged on the driving deflection mechanism, a water inlet pipe is arranged on the spraying head, and the water inlet pipe is connected with a water pump; utilize drive deflection mechanism to carry out an omnidirectional intermittent type formula to the slag and spray the cooling for thereby the slag is cleared up the pulverization and is reached the purpose of separation, and drive deflection mechanism can follow sealed lid is removed left and right sides, sprays effectually, and the wide range only needs a shower head can accomplish simultaneously and sprays the operation, practices thrift processing cost by a wide margin.

Description

Automatic spraying system for steel slag hot-disintegration process treatment

Technical Field

The utility model belongs to the technical field of diversified automatic spray machinery and specifically relates to an automatic spray system that slag hot stuffiness technology was handled and is used.

Background

Along with the annual increase of the steel yield in China, the production amount of the steel slag is increased. About 10% of residual steel in the steel slag is removed by magnetic separation, most of the residual steel is granular and wrapped by slag, and is difficult to separate, and the residual steel is discarded along with the slag to cause waste of metal iron resources. According to incomplete statistics, the steel slag stacking amount in the past year of China is about 6.85 hundred million t, wherein about 2000-3400 ten thousand t of waste steel (calculated by 3% -5%) which is not recovered is discarded; at present, about 4800 million t of steel slag is continuously piled up every year, and about 146-243 million t of steel scrap is discarded. Secondly, the steel slag contains similar hydraulic gelling minerals such as tricalcium silicate (C3S) and dicalcium silicate (C2S) to portland cement clinker, and is not utilized, thereby causing resource waste. Thirdly, the steel slag is randomly piled up, which not only occupies land (the steel slag piled up all the year round occupies about 3.4 ten thousand mu of land, and still occupies about 2400 mu of land every year), but also pollutes surrounding soil and water systems and destroys ecological environment.

At present, various steel slag treatment technologies used at home and abroad, such as hot splashing, air quenching, a roller method and the like, have low metal recovery rate, cannot solve the hidden danger of stability of tailings, and cannot realize zero emission of the steel slag.

At present, in the process of separating steel slag through spraying, cooling and steam digestion, the spraying range of a spraying system is not comprehensive, so that the hot smothering process treatment time is long, the spraying cost of the existing spraying system is high by utilizing a plurality of spraying devices, the temperature detection is inaccurate, and the steel slag pulverization effect is general.

SUMMERY OF THE UTILITY MODEL

To the incomplete scheduling problem of spraying scope that exists among the prior art, the utility model provides an automatic spraying system that steel slag hot stuffiness technology was handled and is used can avoid the emergence of above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is:

an automatic spraying system for steel slag hot-disintegration process treatment comprises a spraying box, wherein the upper surface of the spraying box is rotatably connected with a sealing cover, a driving deflection mechanism is in sliding fit with the sealing cover, a spraying head is arranged on the driving deflection mechanism, a water inlet pipe is arranged on the spraying head, and the water inlet pipe is connected with a water pump; the driving deflection mechanism carries out all-round intermittent type formula spray cooling to the slag for thereby the slag is cleared up the pulverization and is reached the purpose of separation, sprays effectually, and the scope is wide.

In some embodiments, a slide rail is disposed on the sealing cover, a slide block is slidably fitted on the slide rail, and the drive deflection mechanism is disposed on the slide block; the slide rail guides the driving deflection mechanism.

In some embodiments, the driving deflection mechanism includes a motor, the motor is connected to the sliding block, a rotating shaft is disposed on the motor, a sliding sleeve is disposed on the rotating shaft, a hinge block is disposed on one side of the sliding sleeve, and in cooperation with the hinge block, a fixed plate is disposed on the rotating shaft, an electric cylinder is disposed on the fixed plate, and a contraction rod of the electric cylinder is connected to the hinge block.

In some embodiments, the rotating shaft is rotatably connected with the spray head, and a support rod is rotatably connected between the spray head and the hinge block; the driving deflection mechanism realizes multi-angle deflection and omnibearing spraying of the spray header.

In some embodiments, a horizontal plate is fixedly arranged inside the spraying box, a plurality of water leakage holes and a hot stuffy tank are arranged on the horizontal plate, a temperature sensor is arranged on one side of the hot stuffy tank, and steel slag is placed inside the hot stuffy tank; the temperature sensor monitors the temperature of the hot stuffy tank in real time, and the water leakage holes enable redundant water to flow into the water drainage cavity and then be discharged out of the spraying box through the water drainage pipe.

In some embodiments, the surface of the horizontal plate is zirconia, which is resistant to high temperatures.

In some embodiments, the sealing cover is provided with a connecting hole, a water inlet pipe is arranged in the connecting hole, and the water inlet pipe is connected with the spray header.

In some embodiments, the temperature sensor is electrically connected to the control board.

In some embodiments, the electric cylinder is electrically connected with the control board.

In some embodiments, the main body of the sealing cover is in an L-shaped plate shape, a through hole is formed in the sealing cover, a screw rod is arranged in the through hole, a nut is connected to the screw rod in a threaded mode, and in cooperation with the screw rod, a threaded groove is formed in the box body of the spraying box; the screw and the nut are matched to create a sealed environment to accelerate the digestion of calcium oxide.

In some embodiments, a drain pipe is arranged at the bottom of the spraying box, an electromagnetic valve is arranged on the drain pipe, and the electromagnetic valve is electrically connected with the control board.

In some embodiments, the sealing cover is provided with an exhaust pipe and a handle, and the exhaust pipe is provided with an air escape valve; the air release valve controls the pressure inside the spraying box to prevent the steam pressure from being too high; the handle is convenient for workers to open the sealing cover to take out metal after the hot-sealing process is finished.

In some embodiments, the water pump is arranged on a mounting table, and a control box is arranged on the side surface of the mounting table; and a core control panel in the control box controls a water pump, an electric cylinder and the like to finish fine spraying operation.

In some embodiments, a drainage chamber is disposed below the horizontal plate.

The automatic spraying system used for the hot stuffy process treatment of the steel slag comprises a spraying box, wherein the upper surface of the spraying box is rotatably connected with a sealing cover, a driving deflection mechanism is matched on the sealing cover in a sliding manner, a spraying head is arranged on the driving deflection mechanism, a water inlet pipe is arranged on the spraying head, and the water inlet pipe is connected with a water pump; utilize drive deflection mechanism to carry out an omnidirectional intermittent type formula to the slag and spray the cooling for thereby the slag is cleared up the pulverization and is reached the purpose of separation, and drive deflection mechanism can follow sealed lid is removed left and right sides, sprays effectually, and the wide range only needs a shower head can accomplish simultaneously and sprays the operation, practices thrift processing cost by a wide margin.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic spraying system used in the hot stuffy process treatment of steel slag of the utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 labeled A;

FIG. 3 is a schematic view of a local horizontal plate in an automatic spraying system used in the hot disintegrating process of steel slag.

Reference numerals:

1. a spray box; 11. a sealing cover; 12. a nut; 13. a screw; 14. a through hole; 15. an exhaust pipe; 151. a gas release valve; 16. a handle; 17. a thread groove; 2. driving a deflection mechanism; 21. a slide rail; 22. a slider; 23. a motor; 24. a rotating shaft; 25. a sliding sleeve; 26. a fixing plate; 27. an electric cylinder; 28. a support bar; 29. A hinged block; 31. a water pump; 32. a water inlet pipe; 33. a shower head; 4. a horizontal plate; 41. a water leakage hole; 51. a temperature sensor; 52. hot-stuffy tank; 53. steel slag; 6. a drain pipe; 7. an electromagnetic valve; 8. an installation table; 9. And a control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The hot stuffiness principle is as follows:

the hot-closed method utilizes the waste heat of the molten steel slag to generate steam through water spraying, has low energy consumption, can treat the steel slag in various temperatures and states, has the treatment rate of 100 percent, and has good stability of tailings.

The third generation of hot disintegrating treatment technology for molten steel slag is based on the hot disintegrating treatment technology for 400 deg.C steel slag and 800 deg.C steel slag, and is characterized by that the steel slag at about 1650 deg.C is directly turned over in a hot disintegrating device, the water is sprayed to make its surface solidified, then the device cover is covered to intermittently spray water until the temperature of steel slag is reduced to about 65 deg.C, and the hot disintegrating treatment is completed.

Because the slagging time in the steel-making process is short, and the added lime is excessive, the lime is wrapped by the saturated steel slag to generate dead-burned lime which is generally solid-melted with ferrous oxide (FeO). In addition, tricalcium silicate (C3S) in steel slag decomposes at high temperature, also producing f-CaO; the f-CaO in the steel slag has compact crystallization and poor activity, the hydration reaction is slow at normal temperature, and the volume expansion is 98 percent.

From the relationship between the mass transfer coefficient K and the apparent diffusion coefficient DH2O in the theory of permeation, it is known that K increases with increasing water vapor concentration. Therefore, the digestion rate of f-CaO in hot smoldering of the slag depends on the water vapor concentration, i.e., the larger the water vapor concentration, the shorter the reaction time. Under natural conditions, the digestion can be generally carried out for years; but under the conditions of high temperature and high humidity, the hydration can be accelerated and the stability can be realized. Therefore, the design utilizes the waste heat of the steel slag in the closed container, and the supersaturated steam is generated by spraying water for hot smoldering, so that the f-CaO in the steel slag is quickly and fully digested; the measured concentration of water vapor in the hot stuffer device in the hot stuffer production is 100 percent, the concentration of water vapor in the air is 3 to 4 percent, and the ratio of the water vapor to the water vapor is 25 to 33. Multiple tests determine that the hot disintegration time under saturated steam is 8 hours, the steel slag pulverization effect is good, the steel slag f-CaO is stably digested, the water immersion expansion rate is less than 2%, and the standard technical requirements of comprehensive utilization products are met.

As shown in fig. 1 to 3, an automatic spraying system for steel slag hot-disintegration process treatment comprises a spraying box 1, wherein the upper surface of the spraying box is rotatably connected with a sealing cover 11, a driving deflection mechanism 2 is slidably matched on the sealing cover, a spraying head 33 is arranged on the driving deflection mechanism, a water inlet pipe 32 is arranged on the spraying head, and the water inlet pipe is connected with a water pump 31; utilize drive deflection mechanism carries out an omnidirectional intermittent type formula to the slag and sprays the cooling, drive deflection mechanism can follow the sealed lid removes about, sprays effectually, and the scope is wide, only needs a shower head can accomplish simultaneously and sprays the operation, practices thrift processing cost by a wide margin.

In the embodiment of the present invention, as shown in fig. 1 to 2, a slide rail 21 is disposed on the sealing cover, a slide block 22 is slidably fitted on the slide rail, and the slide block is provided with the driving deflection mechanism; the driving deflection mechanism moves along the slide rail to spray and cool the steel slag in all directions.

When the embodiment of the utility model is implemented, as shown in fig. 1 to fig. 2, the driving deflection mechanism comprises a motor 23, the motor is connected with the slider, a rotating shaft 24 is arranged on the motor, a sliding sleeve 25 is arranged on the rotating shaft, a hinge block 29 is arranged on one side of the sliding sleeve, and a fixed plate 26 is arranged on the rotating shaft and is provided with an electric cylinder 27, the rotating shaft is rotationally connected with the spray header, and a support rod 28 is rotationally connected between the spray header and the hinge block; the contraction rod of the electric cylinder is connected with the hinge block; the driving motor drives when the pivot pivoted, the shrink pole of electronic jar contracts, the sliding sleeve is followed the pivot downstream, articulated piece drives the bracing piece motion, the bracing piece drives the shower head motion works as the shrink pole of electronic jar contracts to the first back, and this process circulates in proper order in diastole again to realize the multi-angle of shower head and spray.

When the embodiment of the utility model is implemented, as shown in fig. 1 and fig. 3, a horizontal plate 4 is fixedly arranged inside the spraying box, a plurality of water leakage holes 41 and a hot stuffy tank 52 are arranged on the horizontal plate, a temperature sensor 51 is arranged on one side of the hot stuffy tank, and steel slag 53 is placed inside the hot stuffy tank; the temperature sensor adopts an ultra-high temperature instantaneous temperature sensor produced by Meisiji electronic Limited company in Shenzhen city; the temperature sensor displays the temperature of the hot stuffy tank in real time, and when the temperature is below 65 ℃, the sealing cover is opened to remove slag, and a metal recovery process is carried out; the horizontal plate is used for placing and fixing the hot stuffy tank, the water leakage holes are used for draining water, when the temperature of the hot stuffy tank is lower and lower, sprayed water cannot be completely changed into vapor, and the water in the spraying box must be discharged in time at the moment, so that the hot stuffy process effect is prevented from being influenced.

The embodiment of the utility model provides a further refine of scheme, the surface of horizontal plate is zirconia, high temperature resistant.

The embodiment of the utility model provides a further refine of scheme, as shown in figure 1, the below of horizontal plate is provided with the drainage chamber.

When the embodiment of the utility model is implemented, as shown in fig. 1, the main body of the sealing cover is in the shape of an L-shaped plate, a through hole 14 is arranged in the sealing cover, a screw 13 is arranged in the through hole, a nut 12 is connected to the screw through a thread, and a thread groove 17 is arranged on the box body of the spraying box; the screw, the threads and the thread grooves are matched to plug and fix the sealing cover, so that the closed container is guaranteed to utilize the waste heat of the steel slag, and the water is sprayed to generate supersaturated steam for hot smoldering, so that f-CaO in the steel slag is quickly and fully cleared up.

When the embodiment of the utility model is implemented, as shown in fig. 1, the bottom of the spraying box is provided with a drain pipe 6, the drain pipe is provided with an electromagnetic valve 7, and the electromagnetic valve is electrically connected with the control panel; the electromagnetic valve is opened, and water in the spraying box is discharged.

In the embodiment of the present invention, as shown in fig. 1, the sealing cover is provided with an exhaust pipe 15 and a handle 16, and the exhaust pipe is provided with an air release valve 151; when the water vapor in the spray box is supersaturated, the air escape valve needs to be opened in time to release gas, so that the internal pressure is stable, and calcium oxide digestion is efficiently completed; the handle is convenient for workers to open the sealing cover to take out metal after the hot-sealing process is finished.

In further refinement of the embodiment of the present invention, as shown in fig. 1, the water pump is disposed on an installation table 8, and a control box 9 is disposed on a side surface of the installation table; the water pump and the control board are electrically connected, the control board intermittently sends a spraying signal, the water pump intermittently works to inject water into the spraying head, the spraying and cooling work is completed, and the digestion speed is accelerated.

According to the embodiment of the utility model, the sealing cover is provided with a connecting hole, a water inlet pipe is arranged in the connecting hole, and the water inlet pipe is connected with the spray header; the water inlet pipe is telescopic.

The embodiment of the utility model discloses a further refine of scheme, temperature sensor and electronic jar adopt electric connection with the control panel respectively.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides an automatic spraying system that slag hot smoldering technology was handled and is used, includes the spray box, its characterized in that, the upper surface of spray box rotates and is connected with sealed lid, sliding fit has drive deflection mechanism on the sealed lid, the last shower head that is provided with of drive deflection mechanism, be provided with the inlet tube on the shower head, the inlet tube links to each other with the water pump.

2. The automatic spraying system for the hot stuffy process treatment of steel slag according to claim 1, wherein a sliding rail is arranged on the sealing cover, a sliding block is in sliding fit with the sliding rail, and the driving deflection mechanism is arranged on the sliding block.

3. The automatic spraying system for the hot disintegration process of the steel slag as claimed in claim 2, wherein the driving deflection mechanism comprises a motor, the motor is connected with the sliding block, a rotating shaft is arranged on the motor, a sliding sleeve is arranged on the rotating shaft, a hinge block is arranged on one side of the sliding sleeve, and in cooperation with the hinge block, a fixed plate is arranged on the rotating shaft, an electric cylinder is arranged on the fixed plate, and a contraction rod of the electric cylinder is connected with the hinge block.

4. The automatic spraying system for the hot stuffy process treatment of steel slag according to claim 3, wherein said rotating shaft is rotatably connected with said spray header, and a support rod is rotatably connected between said spray header and said hinge block.

5. The automatic spraying system for the hot stuffy process treatment of steel slag as claimed in claim 1, wherein a horizontal plate is fixedly arranged inside the spraying box, a plurality of water leakage holes and a hot stuffy tank are arranged on the horizontal plate, a temperature sensor is arranged on one side of the hot stuffy tank, and steel slag is placed inside the hot stuffy tank.

6. The automatic spraying system for the hot stuffy process treatment of steel slag as claimed in claim 2, wherein said sealing cover is provided with a connection hole, a water inlet pipe is arranged in said connection hole, and said water inlet pipe is connected with a spray header.

7. The automatic spraying system for the hot stuffy process treatment of the steel slag according to claim 5, wherein a drain pipe is arranged at the bottom of the spraying box, an electromagnetic valve is arranged on the drain pipe, and the electromagnetic valve is electrically connected with the control panel.

8. The automatic spraying system for the hot stuffy process treatment of steel slag as claimed in claim 6, wherein said sealing cover is provided with an exhaust pipe and a handle, and said exhaust pipe is provided with a gas release valve.

9. The automatic spraying system for the hot stuffy process treatment of steel slag according to claim 5, wherein the temperature sensor is electrically connected with the control board.

10. The automatic spraying system for the hot stuffy process treatment of steel slag according to claim 3, wherein the electric cylinder is electrically connected with the control board.