Dual-alkali desulfurization device for silicon-manganese alloy smelting

Abstract

The utility model discloses a double-alkali desulfurization device for silicon manganese alloy smelting, which comprises a sampling tank communicated with the bottom of the outer wall of a desulfurization tower through a liquid inlet pipe, a fourth valve is mounted on the liquid inlet pipe, a blow-off pipe is arranged at the bottom of the sampling tank in a penetrating manner, a first valve is mounted on the blow-off pipe, and an electric cylinder is fixedly connected to the top of the sampling tank. A push rod end of the electric cylinder penetrates into the sampling tank and then is fixedly connected with a mounting plate; a PH probe is fixedly arranged on the mounting plate in a penetrating manner; according to the PH detection device, after PH detection is completed, the flushing mechanism is started, the PH probe is reset upwards, the flushing mechanism is used for flushing the PH probe, then the rotating shaft is driven by the gear motor to rotate so that the containing cup can rotate to the position under the mounting plate, and after enough flushing water is contained in the containing cup, the electric cylinder is started to drive the mounting plate to move downwards, so that the PH probe can be flushed through the flushing mechanism. The bottom end of the PH probe is inserted into the containing cup, then the PH probe can be soaked, the service life of the PH probe is prolonged, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a double alkali desulfurization device for smelting silicon-manganese alloy. Background Art

[0002] A large amount of sulfur-containing flue gas will be generated during the production and smelting process of silicon-manganese alloy. In order to avoid the pollution of such flue gas emissions to the environment, double-alkali desulfurization devices are currently used to desulfurize the flue gas. Double-alkali desulfurization uses sodium-based desulfurizers for desulfurization in the tower. Since the sodium-based desulfurizer has strong alkalinity, the solubility of the reaction product after absorbing sulfur dioxide is large, and it will not cause oversaturation crystallization and scaling and clogging problems. On the other hand, the desulfurization product is discharged into the regeneration pool for reduction and regeneration with calcium hydroxide, and the regenerated sodium-based desulfurizer is returned to the desulfurization tower for recycling.

[0003] During the use of the double alkali desulfurization device, in order to ensure the desulfurization effect of the sodium-based desulfurizer circulating in the desulfurization tower on the flue gas, it is usually necessary to regularly detect the pH of the sodium-based desulfurizer in the desulfurization tower, so that when the alkalinity of the sodium-based desulfurizer decreases, the sodium-based desulfurizer can be output and regenerated in time, and the regenerated sodium-based desulfurizer can be added to the desulfurization tower.

[0004] However, most of the current PH detection mechanisms of double-alkali desulfurization towers are not convenient for flushing and soaking the PH probes after the detection, resulting in a short service life of the PH probes, which needs to be improved. Utility Model Content

[0005] The utility model aims to provide a double alkali desulfurization device for silicon-manganese alloy smelting to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double alkali desulfurization device for smelting silicon manganese alloy, comprising a sampling tank connected to the bottom of the outer wall of a desulfurization tower through a liquid inlet pipe, a fourth valve installed on the liquid inlet pipe, a sewage pipe penetrating the bottom of the sampling tank, a first valve installed on the sewage pipe, an electric cylinder fixedly connected to the top of the sampling tank, a push rod end of the electric cylinder is fixedly connected to a mounting plate after penetrating into the sampling tank, a PH probe is fixedly penetrated on the mounting plate, a serving cup is arranged directly below the PH probe, the inner wall of the sampling tank is rotatably connected to a rotating shaft, the serving cup is fixedly connected to the rotating shaft, a reduction motor is fixedly connected to the outer wall of the sampling tank, the output shaft of the reduction motor is fixedly connected to one end of the rotating shaft, and a flushing mechanism is penetrated on the sampling tank.

[0008] As a further solution of the utility model: the flushing mechanism includes a water supply pipe that passes through the sampling tank, a third valve is installed on the water supply pipe, one end of the water supply pipe located in the sampling tank is connected to an annular flushing pipe, a plurality of nozzles are installed on the inner side of the annular flushing pipe, the PH probe passes through the inner side of the annular flushing pipe, and the annular flushing pipe is located above the serving cup.

[0009] As a further solution of the utility model: a sealing ring is fixedly connected to the bottom of the mounting plate and the corresponding position of the serving cup, and the sealing ring is adapted to the top opening of the serving cup.

[0010] As a further solution of the utility model: a water pump is installed on the top of the sampling tank, a liquid extraction pipe is provided through the top of the sampling tank, the liquid extraction pipe is connected to the water inlet end of the water pump, and the water outlet end of the water pump is connected to the desulfurization tower through a reflux pipe.

[0011] As a further solution of the utility model: a sampling tube is provided through the bottom of the sampling tank, and a second valve is installed on the sampling tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, after completing the PH detection, the flushing mechanism is started, and the PH probe is reset upwards so that the PH probe is flushed by the flushing mechanism, and then the reduction motor drives the rotating shaft to rotate so that the serving cup is rotated to the bottom of the mounting plate. When the serving cup receives a sufficient amount of flushing water, the electric cylinder is started to drive the mounting plate to move downward so that the bottom end of the PH probe can be inserted into the serving cup, and the PH probe can be soaked, so as to increase the service life of the PH probe and achieve good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The schematic diagram of the structure of a double alkali desulfurization device for smelting silicon-manganese alloy.

[0015] Figure 2 This is a schematic diagram of the internal structure of a sampling tank in a double alkali desulfurization device for silicon-manganese alloy smelting.

[0016] Figure 3 The present invention is a schematic diagram of the structure of an annular flushing pipe in a double alkali desulfurization device for smelting silicon-manganese alloy.

[0017] Among them, there are sampling tank 1, liquid inlet pipe 2, bracket 3, water pump 4, liquid extraction pipe 5, reflux pipe 6, sewage pipe 7, first valve 8, sampling tube 9, second valve 10, electric cylinder 11, mounting plate 12, PH probe 13, water supply pipe 14, third valve 15, annular flushing pipe 16, nozzle 17, rotating shaft 18, reduction motor 19, serving cup 20, sealing ring 21, desulfurization tower 22 and fourth valve 23. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 In an embodiment of the utility model, a double alkali desulfurization device for smelting silicon-manganese alloy comprises a sampling tank 1 connected to the bottom of the outer wall of a desulfurization tower 22 through a liquid inlet pipe 2, the sampling tank 1 is fixedly mounted on a bracket 3, a fourth valve 23 is mounted on the liquid inlet pipe 2, a sewage pipe 7 is penetrated through the bottom of the sampling tank 1, a first valve 8 is mounted on the sewage pipe 7, an electric cylinder 11 is fixedly connected to the top of the sampling tank 1, a push rod end of the electric cylinder 11 is fixedly connected to a mounting plate 12 after penetrating into the sampling tank 1, a PH probe 13 is fixedly penetrated on the mounting plate 12, a serving cup 20 is arranged directly below the PH probe 13, an inner wall of the sampling tank 1 is rotatably connected to a rotating shaft 18, the serving cup 20 is fixedly connected to the rotating shaft 18, a reduction motor 19 is fixedly connected to the outer wall of the sampling tank 1, an output shaft of the reduction motor 19 is fixedly connected to one end of the rotating shaft 18, and a flushing mechanism is penetrated on the sampling tank 1.

[0020] By adopting the above scheme, during the use of the utility model, when it is necessary to perform pH detection on the sodium-based desulfurizer in the desulfurization tower 22, it is only necessary to open the fourth valve 23 on the liquid inlet pipe 2 to allow the sodium-based desulfurizer in the desulfurization tower 22 to flow into the sampling tank 1 from the liquid inlet pipe 2, and then start the electric cylinder 11 to push the pH probe 13 to move downward, so that the pH probe 13 is inserted into the sodium-based desulfurizer, and the pH detection can be performed. After the detection is completed, the flushing mechanism is started, and the pH probe 13 is reset upward to flush the pH probe 13 using the flushing mechanism, and then the reduction motor 19 drives the rotating shaft 18 to rotate so that the cup 20 rotates to the bottom of the mounting plate 12. When a sufficient amount of flushing water is received in the cup 20, the electric cylinder 11 is started to drive the mounting plate 12 to move downward, so that the bottom end of the pH probe 13 is inserted into the cup 20, and the pH probe 13 can be soaked to increase the service life of the pH probe 13, and the use effect is good.

[0021] Specific combination Figure 2 , Figure 3In one embodiment of the utility model, the flushing mechanism includes a water supply pipe 14 that passes through the sampling tank 1, and a third valve 15 is installed on the water supply pipe 14. One end of the water supply pipe 14 located in the sampling tank 1 is connected to an annular flushing pipe 16, and a plurality of nozzles 17 are installed on the inner side of the annular flushing pipe 16. The PH probe 13 passes through the inner side of the annular flushing pipe 16, and the annular flushing pipe 16 is located above the serving cup 20.

[0022] By providing the annular flushing pipe 16 and a plurality of spray heads 17 , the spray heads 17 can be used to spray water toward the PH probe 13 by simply starting the third valve 15 , thereby cleaning the PH probe 13 .

[0023] Specific combination Figure 2 In one embodiment of the utility model, a sealing ring 21 is fixedly connected to the bottom of the mounting plate 12 and the corresponding position of the serving cup 20, and the sealing ring 21 is adapted to the top opening of the serving cup 20. By setting the sealing ring 21, when the mounting plate 12 is moved down, the sealing ring 21 can be attached to the cup mouth of the serving cup 20 to seal the serving cup 20.

[0024] Specific combination Figure 2 In one embodiment of the utility model, a water pump 4 is installed on the top of the sampling tank 1, and a liquid extraction pipe 5 is arranged through the top of the sampling tank 1. The liquid extraction pipe 5 is connected to the water inlet end of the water pump 4, and the water outlet end of the water pump 4 is connected to the desulfurization tower 22 through the reflux pipe 6.

[0025] After completing a PH test, start the water pump 4 to pump most of the sodium-based desulfurizer in the sampling tank 1 back into the desulfurization tower 22 to avoid wasting the sodium-based desulfurizer. Then start the flushing mechanism and open the first valve 8 to inflate the PH probe 13 and discharge the sewage generated by the cleaning through the sewage pipe 7.

[0026] Specific combination Figure 2 In one embodiment of the utility model, a sampling tube 9 is provided through the bottom of the sampling tank 1, and a second valve 10 is installed on the sampling tube 9. Through the setting of the sampling tube 9 and the second valve 10, each time the PH test is performed, it is convenient to release the sodium-based desulfurizer in the sampling tank 1 from the sampling tube 9, thereby facilitating the retention of samples of the sodium-based desulfurizer.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double alkali desulfurization device for smelting silicon-manganese alloy, characterized in that: The invention comprises a sampling tank (1) connected to the bottom of the outer wall of a desulfurization tower (22) through a liquid inlet pipe (2), a fourth valve (23) being installed on the liquid inlet pipe (2), a sewage pipe (7) being provided through the bottom of the sampling tank (1), a first valve (8) being installed on the sewage pipe (7), an electric cylinder (11) being fixedly connected to the top of the sampling tank (1), a push rod end of the electric cylinder (11) being inserted into the sampling tank (1) and fixedly connected to a mounting plate (12), and the mounting plate (13) being fixedly connected to the push rod end of the electric cylinder (11) A pH probe (13) is fixedly mounted on the mounting plate (12), a cup (20) is arranged directly below the pH probe (13), the inner wall of the sampling tank (1) is rotatably connected to a rotating shaft (18), the cup (20) is fixedly connected to the rotating shaft (18), the outer wall of the sampling tank (1) is fixedly connected to a reduction motor (19), the output shaft of the reduction motor (19) is fixedly connected to one end of the rotating shaft (18), and a flushing mechanism is mounted on the sampling tank (1).

2. A double alkali desulfurization device for silicon-manganese alloy smelting according to claim 1, characterized in that: The flushing mechanism comprises a water supply pipe (14) passing through the sampling tank (1), a third valve (15) being installed on the water supply pipe (14), one end of the water supply pipe (14) located inside the sampling tank (1) being connected to an annular flushing pipe (16), a plurality of nozzles (17) being installed on the inner side of the annular flushing pipe (16), the pH probe (13) passing through the inner side of the annular flushing pipe (16), and the annular flushing pipe (16) being located above the containing cup (20).

3. The double alkali desulfurization device for silicon-manganese alloy smelting according to claim 1 is characterized in that: A sealing ring (21) is fixedly connected at the bottom of the mounting plate (12) and at a position corresponding to the serving cup (20), and the sealing ring (21) is adapted to the top opening of the serving cup (20).

4. The double alkali desulfurization device for silicon-manganese alloy smelting according to claim 1 is characterized in that: A water pump (4) is installed on the top of the sampling tank (1), and a liquid extraction pipe (5) is provided through the top of the sampling tank (1). The liquid extraction pipe (5) is connected to the water inlet end of the water pump (4), and the water outlet end of the water pump (4) is connected to the desulfurization tower (22) through a reflux pipe (6).

5. The double alkali desulfurization device for silicon-manganese alloy smelting according to claim 1, characterized in that: A sampling tube (9) is provided through the bottom of the sampling tank (1), and a second valve (10) is installed on the sampling tube (9).

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