Quenching tower slag extractor with sealing device

Abstract

The utility model discloses a quench tower slag extractor with a sealing device. The quench tower slag extractor solves the problems that in the prior art, a quench tower slag extractor is serious in air leakage, and a slag outlet is prone to being blocked. The device comprises a quench tower, a smoke inlet pipe and a spraying assembly matched with the smoke inlet pipe are arranged on the upper portion of the quench tower, a smoke outlet is further formed in the quench tower, at least two layers of sealed discharging mechanisms working intermittently are arranged in the quench tower, and the smoke outlet is located between the two layers of sealed discharging mechanisms. The sealed discharging mechanism is connected with a driving assembly installed on the side wall of the quench tower, and the lower portion of the quench tower is connected with a slag discharging mechanism. The two layers of sealing discharging mechanisms which work intermittently are adopted to achieve sealing of the quench tower in the operation process, the air leakage phenomenon in the slag discharging process of the quench tower is prevented, each sealing mechanism is controlled by an independent driving assembly, stable operation of the quench tower can be guaranteed, the sealing performance is improved through the two layers of sealing discharging mechanisms, air leakage is avoided, and the service life of the quench tower is prolonged. And the operation cost input is saved, and the sealing performance of equipment in the deslagging process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag discharger sealing, in particular to a quench tower slag discharger with a sealing device. Background Art

[0002] After the denitrification and deacidification processes in the incineration treatment of hazardous waste, a large amount of waste gas, also known as flue gas, will be generated. Hazardous waste treatment companies must have professional treatment qualifications. The high toxicity and infectiousness of hazardous waste will cause environmental pollution if not properly handled. Therefore, hazardous waste treatment companies must have strict procedures. After the incineration treatment of hazardous waste, a large amount of flue gas will be generated. The flue gas contains harmful components. At the end of the incineration treatment, the flue gas treatment method must be carried out to finally achieve standard flue gas emissions. In the treatment process of hazardous waste, the flue gas is first cooled by the waste heat boiler. Before entering the waste heat boiler, the flue gas temperature is 1100℃. The flue gas is cooled to about 550℃ and discharged from the waste heat boiler. An SNCR device is installed in the furnace of the waste heat boiler to control NOx. After passing through the waste heat boiler, the flue gas is sent to the quenching tower. After being sprayed with quenching water, the temperature is quickly cooled to less than 200℃ to avoid the regeneration of dioxins.

[0003] While the flue gas is being cooled in the quenching tower, part of the dust entrained in the flue gas is also washed and intercepted, settled in the quenching tower, and then discharged through the slag discharger at the bottom of the quenching tower. During the slag discharge process, the quenching tower cannot be completely sealed. In actual use, there are serious air leakage phenomena, including but not limited to excessive opening of the slag discharger of the quenching tower, resulting in serious air leakage in the system, or the phenomenon that the ash outlet is blocked and not opened. Air leakage in the cooling tower body will reduce the exhaust volume in the tower. The increase in the air leakage of the cooling tower body will result in relatively less heat exchange between the cold air and the circulating water in the tower, and the discharged heat will be reduced, resulting in a decrease in the cooling effect of the cooling tower. Therefore, air leakage in the cooling tower body will cause an increase in the heat loss in the cooling tower and a decrease in the thermal efficiency of the cooling tower. Therefore, the air leakage phenomenon of the slag discharger of the quenching tower is analyzed, and a sealing device is added according to the existing operating conditions to improve the stability of the entire incineration system. Therefore, it is necessary to develop quenching tower slag discharge equipment that can ensure stable operation of the quenching tower, reduce the cost investment caused by air leakage, and avoid air leakage during the operation of the quenching tower slag discharger, which will affect the stable operation of the incineration system and increase operating costs. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a quench tower slag remover with a sealing device, which solves the problems of serious air leakage and easy blockage of the slag outlet of the quench tower slag remover in the prior art.

[0005] The technical solution of the utility model is achieved as follows: a quenching tower slag discharger with a sealing device comprises a quenching tower, a smoke inlet pipe and a spray assembly matched with the smoke inlet pipe are arranged at the upper part of the quenching tower, a smoke outlet is also arranged on the quenching tower, at least two layers of intermittently working sealed feeding mechanisms are arranged in the quenching tower, the smoke outlet is located between the two layers of sealed feeding mechanisms, the sealed feeding mechanism is connected to a driving assembly installed on the side wall of the quenching tower, and a slag discharge mechanism is connected to the lower part of the quenching tower.

[0006] Furthermore, the sealed unloading mechanism includes a fixed plate fixedly connected to the inner wall of the quenching tower, the fixed plate is provided with at least one discharge hole, the upper part of the fixed plate is rotatably connected to a rotating assembly, the lower part of the fixed plate is provided with a discharge plate, and the discharge plate is fixedly connected to the rotating assembly through a connecting shaft.

[0007] Furthermore, the rotating assembly includes a driven gear, a limiting ring is provided at the lower portion of the driven gear, and the limiting ring is slidably arranged in a limiting groove at the upper portion of the fixed plate.

[0008] Furthermore, the driven gear includes an outer gear ring and an inner ring, at least two connecting rods are provided between the inner ring and the outer gear ring, and the inner ring is fixedly connected to the connecting shaft.

[0009] Furthermore, at least one slag stopper cooperating with the outer gear ring is provided on the inner wall of the quenching tower.

[0010] Furthermore, at least one discharge hole is provided on the discharge plate, and when the fixed plate and the discharge plate are in a sealed state, the discharge hole and the discharge hole are staggered.

[0011] Furthermore, a connecting ring plate is provided on the upper part of the unloading plate, and the connecting ring plate is slidably arranged in the mounting groove at the lower part of the fixed plate.

[0012] Furthermore, the driving assembly includes a stepper motor, the output shaft of the stepper motor is connected to a driving gear meshing with a driven gear, the stepper motor is mounted on an auxiliary box, and the auxiliary box is mounted on the outer wall of the quenching tower.

[0013] Furthermore, a detachable support plate is provided at the lower part of the auxiliary box, and a sealing strip is provided between the support plate and the auxiliary box.

[0014] Furthermore, the slag discharge mechanism includes a discharge pipe, which is fixedly connected to the lower part of the quenching tower. A spiral blade shaft is provided in the discharge pipe, and the spiral blade shaft is connected to a drive motor, which is installed at the lower part of the quenching tower.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model adopts a two-layer intermittently working sealing feeding mechanism to achieve the sealing of the quenching tower during operation, to prevent air leakage during the slag discharge process of the quenching tower, and each sealing mechanism is controlled by an independent driving component, which can ensure the stable operation of the quenching tower, and the two-layer sealing feeding mechanism improves the sealing performance, avoids air leakage, saves operating cost investment, and improves the sealing performance of the equipment during the slag discharge process.

[0017] 2. The fixed plate is fixed on the inner wall of the quenching tower, and the rotating assembly and the discharge plate are both installed on the fixed plate. The rotating assembly drives the discharge plate to rotate through the connecting shaft, so that the generated slag and ash fall from the discharge port, thereby realizing sealed slag removal.

[0018] 3. The driven gear rotates under the drive of the driving assembly, and the limit ring cooperates with the limit groove to ensure the rotation of the driven gear. The slag block is used to scrape off the slag on the outer gear ring to prevent the slag from clogging the outer gear ring and affecting the use effect of the outer gear ring. The connecting rods are evenly distributed between the outer gear ring and the inner ring, and the connecting rods are also used to scrape off the slag on the fixed plate.

[0019] 4. The discharge hole and the discharge hole are staggered in the sealed state to ensure the sealing effect of the sealing unloading assembly during use. The cross section of the connecting ring plate on the discharge plate is an inverted L-shaped structure, which is used to limit the outer ring of the discharge plate to prevent the discharge plate from tilting during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a top view of the sealing assembly of the utility model.

[0023] Figure 3 for Figure 2 Side view of.

[0024] Figure 4 for Figure 3 Sectional view of AA.

[0025] Figure 5 for Figure 3 Cross-sectional view of BB.

[0026] Figure 6 for Figure 3 A partial enlarged schematic diagram of point C in the middle.

[0027] In the figure: 1, smoke inlet pipe, 2, spray assembly, 3, quenching tower, 4, auxiliary box, 5, stepping motor, 6, driving gear, 7, support plate, 8, spiral blade shaft, 9, discharge pipe, 10, driving motor, 10-1, mounting plate, 11, discharge plate, 11-1, discharge hole, 11-2, connecting ring plate, 12, fixing plate, 12-1, discharge hole, 12-2, mounting groove, 12-3, limit groove, 13, driven gear, 13-1, limit ring, 13-2, outer gear ring, 13-3, connecting rod, 13-4, inner ring, 14, smoke outlet, 15, slag block, 16, connecting shaft. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1 and Figure 2 As shown, in Example 1, a quenching tower slag discharger with a sealing device comprises a quenching tower 3, wherein a heat-resistant layer is provided inside the quenching tower 3, a smoke inlet pipe 1 and a spray assembly 2 matched with the smoke inlet pipe 1 are provided at the upper part of the quenching tower 3, a smoke outlet 14 is also provided on the quenching tower 3, at least two layers of intermittently working sealed unloading mechanisms are provided inside the quenching tower 3, the smoke outlet 14 is located between the two layers of sealed unloading mechanisms, the sealed unloading mechanisms are connected to the driving assembly installed on the side wall of the quenching tower 3, and the lower part of the quenching tower 3 is connected to the slag discharge mechanism. The two layers of intermittently working sealed unloading mechanisms are used to realize the sealing of the quenching tower 3 during operation, and to prevent air leakage during the slag discharge process of the quenching tower 3, and each sealing mechanism is controlled by an independent driving assembly, which can ensure the stable operation of the quenching tower 3, and the two layers of sealed unloading mechanisms improve the sealing performance, avoid air leakage, save operating cost investment, and improve the sealing performance of the equipment during the slag discharge process.

[0030] Specifically, the quenching tower 3, the spray assembly 2, the smoke inlet pipe 1 and the slag discharge mechanism can all adopt the existing structure. A two-layer sealed feeding mechanism is installed in the existing structure, and the two-layer sealed feeding mechanism works intermittently, which can ensure that during the slag discharge process, the smoke inlet and the slag discharge mechanism are always in a separated state, thereby improving the sealing of the quenching tower 3 during the slag discharge process, making the equipment operation more stable, and saving operation cost and maintenance cost investment.

[0031] like Figure 3 and Figure 6As shown, Example 1 is a quenching tower slag discharger with a sealing device, which is different from Example 1 in that the sealed unloading mechanism includes a fixed plate 12 fixedly connected to the inner wall of the quenching tower 3, the fixed plate 12 is provided with at least one discharge hole 12-1, the upper part of the fixed plate 12 is rotatably connected with a rotating assembly, the lower part of the fixed plate 12 is provided with a discharge plate 11, and the discharge plate 11 is fixedly connected to the rotating assembly through a connecting shaft 16. The fixed plate 12 is fixed to the inner wall of the quenching tower 3, the rotating assembly and the discharge plate 11 are both installed on the fixed plate 12, and the rotating assembly drives the discharge plate 11 to rotate through the connecting shaft 16, so that the generated slag and ash fall from the discharge port, thereby realizing sealed slag removal.

[0032] In this embodiment, the rotating assembly includes a driven gear 13, a limiting ring 13-1 is provided at the lower part of the driven gear 13, and the limiting ring 13-1 is slidably arranged in the limiting groove 12-3 at the upper part of the fixed plate 12. The driven gear 13 rotates under the drive of the driving assembly, and the limiting ring 13-1 cooperates with the limiting groove 12-3 to ensure the rotation of the driven gear 13. The driven gear 13 includes an outer gear ring 13-2 and an inner ring 13-4, and at least two connecting rods 13-3 are provided between the inner ring 13-4 and the outer gear ring 13-2, and the inner ring 13-4 is fixedly connected to the connecting shaft 16. The number of connecting rods 13-3 can be selected according to actual conditions. Preferably, there are three connecting rods 13-3, and the three connecting rods 13-3 are evenly distributed between the outer gear ring 13-2 and the inner ring 13-4. The connecting rods 13-3 also have the function of scraping off the slag and ash on the fixed plate 12. At least one slag-blocking block 15 cooperating with the outer gear ring 13-2 is provided on the inner wall of the quenching tower 3. The gear portion of the outer gear ring 13-2 is located in the gear groove on the inner wall of the quenching tower 3. Preferably, the inner wall of the gear groove is provided with at least two upper and lower sealing rings to ensure the sealing of the gear during the rotation process, to prevent slag from entering the gear and affecting the gear meshing, and to prevent the slag from wearing the gear. The slag-blocking block 15 is a wedge-shaped block, and is used to scrape off the slag on the outer gear ring 13-2 to prevent the slag from clogging the outer gear ring 13-2 and affecting the use effect of the outer gear ring 13-2.

[0033] In this embodiment, at least one discharge hole 11-1 is provided on the discharge plate 11, and when the fixed plate 12 and the discharge plate 11 are in a sealed state, the discharge hole 12-1 and the discharge hole 11-1 are staggered. A connecting ring plate 11-2 is provided on the upper part of the discharge plate 11, and the connecting ring plate 11-2 is slidably arranged in the mounting groove 12-2 at the lower part of the fixed plate 12. Both the discharge hole 11-1 and the discharge hole 12-1 are preferably fan-shaped structures, which are convenient for the circular fixed plate 12 and the discharge plate 11 to discharge materials. The number of the discharge holes 11-1 and the discharge holes 12-1 can be the same or different. The discharge holes 11-1 and the discharge holes 12-1 are staggered in the sealed state to ensure the sealing effect of the sealing discharge assembly during use. The cross section of the connecting ring plate 11-2 on the discharge plate 11 is an inverted L-shaped structure, which is used to limit the outer ring of the discharge plate 11 to avoid the discharge plate 11 from tilting during use.

[0034] The other structures are the same as those in Example 1.

[0035] like Figure 1 and Figure 6 As shown, Example 3, a quenching tower slag discharger with a sealing device, which is different from Example 1 in that the driving assembly includes a stepper motor 5, and the upper and lower sealed unloading assemblies are controlled by the stepper motors 5 at different points, so as to facilitate the simultaneous unloading of the upper and lower unloading. The specific control can be realized by using the existing control device. The output shaft of the stepper motor 5 is connected with a driving gear 6 meshing with the driven gear 13, and the stepper motor 5 is installed on the auxiliary box 4, and the auxiliary box 4 is installed on the outer wall of the quenching tower 3. The stepper motor 5 and the driving gear 6 are arranged between the two chambers of the auxiliary box 4, and the two chambers are in a sealed state during use to prevent the quenching tower 3 from leaking air from the position of the auxiliary box 4. A detachable support plate 7 is provided at the lower part of the auxiliary box 4, and a sealing strip is provided between the support plate 7 and the auxiliary box 4. A sealing strip is provided between the support plate 7 and the auxiliary box 4 to ensure the sealing of the auxiliary box 4, and the support plate 7 is convenient for repairing the driving gear 6 and the driven gear 13.

[0036] In this embodiment, the slag discharge mechanism includes a discharge pipe 9, which is fixed at the lower part of the quenching tower 3, and is preferably arranged in an integrated manner with the quenching tower 3. The discharge pipe 9 is fixedly connected to the lower part of the quenching tower 3, and a spiral blade shaft 8 is arranged in the discharge pipe 9. The spiral blade shaft 8 is an existing spiral shaft. The spiral blade shaft 8 is connected to a drive motor 10, and the drive motor 10 is installed at the lower part of the quenching tower 3. The drive motor 10 is installed on a mounting plate 10-1, and the mounting plate 10-1 is installed at the lower part of the quenching tower 3. The lower part of the quenching tower 3 is an inverted truncated cone structure, and the drive motor 10 drives the spiral blade shaft 8 to rotate, so as to discharge the slag ash in the quenching tower 3.

[0037] The other structures are the same as those in Example 2.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quench tower slag discharger with a sealing device, characterized in that: The quenching tower (3) comprises a quenching tower (3), wherein a smoke inlet pipe (1) and a spray assembly (2) cooperating with the smoke inlet pipe (1) are provided at the upper part of the quenching tower (3), a smoke outlet (14) is also provided on the quenching tower (3), at least two layers of intermittently working sealed material discharge mechanisms are provided in the quenching tower (3), the smoke outlet (14) is located between the two layers of sealed material discharge mechanisms, the sealed material discharge mechanism is connected to a driving assembly installed on the side wall of the quenching tower (3), and the lower part of the quenching tower (3) is connected to a slag discharge mechanism; The sealed unloading mechanism comprises a fixed plate (12) fixedly connected to the inner wall of the quenching tower (3), the fixed plate (12) being provided with at least one discharge hole (12-1), the upper part of the fixed plate (12) being rotatably connected to a rotating assembly, the lower part of the fixed plate (12) being provided with a discharge plate (11), the discharge plate (11) being fixedly connected to the rotating assembly via a connecting shaft (16); The rotating assembly comprises a driven gear (13), a limiting ring (13-1) is provided at the lower part of the driven gear (13), and the limiting ring (13-1) is slidably arranged in a limiting groove (12-3) at the upper part of the fixing plate (12); The driven gear (13) comprises an outer gear ring (13-2) and an inner ring (13-4), at least two connecting rods (13-3) are provided between the inner ring (13-4) and the outer gear ring (13-2), and the inner ring (13-4) is fixedly connected to a connecting shaft (16).

2. The quench tower slag discharger with a sealing device according to claim 1, characterized in that: At least one slag blocking block (15) cooperating with the external gear ring (13-2) is provided on the inner wall of the quenching tower (3).

3. The quench tower slag discharger with a sealing device according to claim 1 or 2, characterized in that: The discharge plate (11) is provided with at least one discharge hole (11-1), and when the fixed plate (12) and the discharge plate (11) are in a sealed state, the discharge hole (12-1) and the discharge hole (11-1) are arranged in a staggered manner.

4. The quench tower slag discharger with a sealing device according to claim 3, characterized in that: A connecting ring plate (11-2) is provided at the upper portion of the discharge plate (11), and the connecting ring plate (11-2) is slidably arranged in a mounting groove (12-2) at the lower portion of the fixed plate (12).

5. The quench tower slag discharger with a sealing device according to any one of claims 1, 2 and 4, characterized in that: The driving assembly comprises a stepping motor (5), the output shaft of the stepping motor (5) being connected to a driving gear (6) meshing with a driven gear (13), the stepping motor (5) being mounted on an auxiliary box (4), and the auxiliary box (4) being mounted on an outer wall of the quenching tower (3).

6. The quench tower slag discharger with a sealing device according to claim 5, characterized in that: A detachable support plate (7) is provided at the lower part of the auxiliary box (4), and a sealing strip is provided between the support plate (7) and the auxiliary box (4).

7. The quench tower slag discharger with a sealing device according to claim 6, characterized in that: The slag discharge mechanism comprises a discharge pipe (9), the discharge pipe (9) is fixedly connected to the lower part of the quenching tower (3), a spiral blade shaft (8) is arranged in the discharge pipe (9), the spiral blade shaft (8) is connected to a drive motor (10), and the drive motor (10) is installed at the lower part of the quenching tower (3).

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