Quenching tower for medical waste incineration treatment

Abstract

The utility model discloses a quench tower for medical waste incineration treatment, which comprises a tower body, the tower body is provided with a smoke inlet and a smoke outlet, a spraying assembly is arranged in the tower body, a smoke inlet pipe is arranged at the smoke inlet, a self-rotating assembly is arranged in the smoke inlet pipe, the bottom of the tower body is rotatably connected with a cleaning assembly capable of scraping salt scale, and the cleaning assembly is provided with a water inlet and a water outlet. And the self-rotating assembly is in transmission connection with the cleaning assembly. The self-rotating assembly is arranged in the smoke inlet pipe, the cleaning assembly is arranged in the tower body, transmission is conducted on the cleaning assembly through the self-rotating assembly, the cleaning assembly scrapes salt scales adhering to the inner wall of the quench tower under the assistance of power provided by the self-rotating assembly, and the situation that the inner wall of the quench tower scales step by step is avoided through continuous cleaning of the cleaning assembly; meanwhile, the situation that time and labor are wasted for cleaning the inner wall of the quench tower after the inner wall of the quench tower is scaled is avoided, and the technical problems that in the prior art, the inner wall of the quench tower is scaled step by step, consequently, deslagging is unsmooth, and time and labor are wasted for cleaning the inner wall of the quench tower after scaling are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching towers, in particular to a quenching tower used for incineration of medical waste. Background Art

[0002] In addition to setting up a reasonable incineration system, medical waste incineration treatment facilities also need to be equipped with a complete flue gas purification system to carry out flue gas evolution treatment. In order to reduce the content of dioxins in the flue gas, the flue gas purification system needs to rapidly cool the high-temperature flue gas between 500℃ and 200℃, and the flue gas purification system time is less than 1s. How to rapidly cool the high-temperature flue gas between 500℃ and 200℃ is a technical problem to be solved.

[0003] The existing rapid cooling method usually uses high-salt wastewater to cool the high-temperature flue gas. This method of using high-salt wastewater to cool the high-temperature flue gas can cool rapidly and inhibit the regeneration of dioxins. For example, the Chinese patent with the authorization announcement number CN207094646U discloses a new type of rapid cooling tower system that can be cooled by high-salt wastewater. High-salt wastewater is used to cool the flue gas. The high-salt wastewater exchanges heat with the high-temperature flue gas in the rapid cooling tower and evaporates instantly. The residence time is 1s. While evaporating, the salt in the high-salt wastewater precipitates in the tower, and larger particles of salt ash are obtained at the bottom of the tower. The remaining small particles of salt particles are captured in the subsequent bag filter. In the quench tower, the specially designed double-layer structure (mud + insulation layer) not only reduces the weight of the equipment and improves the adhesion and strength of the mud, but also ensures the complete evaporation of the injected high-salt wastewater, while also avoiding corrosion inside the equipment and the adhesion of the precipitated salt particles to the wall, while the life of the equipment and the maintenance cycle of the system are not affected. In the quench tower, the rapid flushing of the flue gas also makes it difficult for salt to scale in the tower.

[0004] However, in actual use, high-salt wastewater exchanges heat with high-temperature flue gas in the quenching tower and evaporates instantly with a residence time of 1s. While evaporating, the salt in the high-salt wastewater precipitates in the tower. The precipitation in the tower includes the precipitation of waste salt at the bottom of the quenching tower and on the inner wall of the quenching tower. Once the waste salt precipitates on the wall of the quenching tower, a dense salt layer with a thickness of tens of centimeters will be formed on the inner wall of the quenching tower in a short period of time, which will deteriorate the operating conditions of the quenching tower. At the same time, the spray from the quenching spray gun will directly contact the salt layer, causing water dripping and wetting the bottom, as well as the problem of poor slag discharge and time-consuming and labor-intensive cleaning of the inner wall of the quenching tower. In the actual use of the above-disclosed new quenching tower system that can be cooled by high-salt wastewater, as the waste salt is continuously precipitated on the inner wall of the quenching tower, the salt particles captured in the bag filter are limited, and the inner wall of the quenching tower will still gradually adhere to the waste salt. If the waste salt is allowed to gradually scale, it will still cause the problem of poor slag discharge, affecting the smoothness and stability of the operation of the entire system. In addition, after scaling in the tower, cleaning the inner wall of the quenching tower is time-consuming and labor-intensive. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a quenching tower for medical waste incineration treatment, which solves the technical problems in the prior art of gradual scaling of the inner wall of the quenching tower resulting in poor slag discharge and time-consuming and labor-intensive cleaning of the inner wall of the quenching tower after scaling.

[0006] The technical solution of the utility model is achieved as follows: a quenching tower for incineration treatment of medical waste comprises a tower body, the tower body is provided with a smoke inlet and a smoke outlet, a spray assembly is arranged in the tower body, a smoke inlet pipe is arranged at the smoke inlet, a self-rotating assembly is arranged in the smoke inlet pipe, a cleaning assembly capable of scraping off salt scale is rotatably connected to the bottom of the tower body, and the self-rotating assembly is transmission-connected to the cleaning assembly.

[0007] Preferably, the cleaning assembly includes a connecting shaft, a connecting rod is connected to the connecting shaft, a scraper in contact with the inner wall of the tower body is connected to the connecting rod, the bottom of the connecting shaft is rotatably connected to the bottom of the tower body, and the top of the connecting shaft is transmission-connected to the self-rotating assembly.

[0008] Preferably, a first bevel gear is provided on the top of the connecting shaft, and the first bevel gear is transmission-connected to the self-rotating assembly.

[0009] Preferably, at least two connecting rods are provided axially of the connecting shaft.

[0010] Preferably, a truncated cone is connected to the bottom of the tower body, an upper bottom surface of the truncated cone is connected to a bearing, and the bearing sleeve is arranged on the connecting shaft.

[0011] Preferably, the self-rotating component includes a rotating shaft rotatably arranged on the smoke inlet pipe, the rotating shaft is connected to a rotating fan blade, the rotating fan blade is located in the smoke inlet pipe, one end of the rotating shaft is connected to a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0012] Preferably, the rotating fan blades include a rotating body and an even number of first curved surface blades, the rotating body is fixedly connected to the rotating shaft, the even number of first curved surface blades are symmetrically arranged along the circumference of the rotating body, and the first curved surface blades are arranged to face the wind.

[0013] Preferably, the rotating fan blades further include an even number of blocks and a second curved surface blade, the curved surface of the second curved surface blade is opposite to the curved surface of the first curved surface blade, and the second curved surface blade is located between two adjacent first curved surface blades.

[0014] Preferably, a connecting block for wrapping the smoke inlet pipe is provided in the tower body; and a slag outlet is provided at the bottom of the tower body.

[0015] Preferably, the spray assembly comprises a fixed plate, the fixed plate is connected to the tower body, a spray head is connected to the fixed plate, and the spray head is connected to an external solution pool through a pipeline.

[0016] The beneficial effects of the utility model are as follows: 1. The utility model utilizes a self-rotating component in the smoke inlet pipe and a cleaning component in the tower body. The self-rotating component drives the cleaning component, and the cleaning component scrapes off the salt scale adhered to the inner wall of the quenching tower with the help of the power provided by the self-rotating component. Through the continuous cleaning of the cleaning component, the gradual scaling of the inner wall of the quenching tower is avoided, and the normal slag discharge of the entire system is not affected. At the same time, it also avoids the time-consuming and labor-intensive cleaning of the inner wall of the quenching tower after scaling of the inner wall of the quenching tower, and solves the technical problems in the prior art that the gradual scaling of the inner wall of the quenching tower leads to poor slag discharge and the time-consuming and labor-intensive cleaning of the inner wall of the quenching tower after scaling.

[0017] 2. The utility model is provided with a self-rotating component in the smoke inlet pipe, which uses the kinetic energy of the high-temperature smoke to drive the rotating blades to rotate, and then drives the rotating shaft to rotate. Through the meshing of the first bevel gear and the second bevel gear, the kinetic energy of the high-temperature smoke is converted into power for the cleaning component to scrape off the salt scale adhered to the inner wall of the quenching tower, thereby reasonably utilizing energy and improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the connection between the first bevel gear and the second bevel gear of the utility model.

[0021] Figure 3 It is a schematic diagram of the rotating fan blade of the utility model.

[0022] In the figure, 1 is a tower body, 2 is a smoke inlet pipe, 3 is a spray assembly, 4 is a connecting shaft, 5 is a connecting rod, 6 is a scraper, 7 is a first bevel gear, 8 is a frustum, 9 is a bearing, 10 is a rotating shaft, 11 is a rotating fan blade, 12 is a second bevel gear, 13 is a connecting block, 14 is a slag outlet, 15 is a fixed plate, 16 is a nozzle, 17 is a rotating body, 18 is a first curved blade, 19 is a second curved blade, 20 is a base, and 21 is a smoke outlet. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1, a quenching tower for incineration of medical waste, such as Figure 1 and Figure 2 As shown, it includes a tower body 1, the tower body 1 is provided with a smoke inlet and a smoke outlet 21, a spray assembly 3 is provided in the tower body 1, a smoke inlet pipe 2 is provided at the smoke inlet, a self-rotating assembly is provided in the smoke inlet pipe 2, a cleaning assembly capable of scraping off salt scale is rotatably connected at the bottom of the tower body 1, and the self-rotating assembly is transmission-connected with the cleaning assembly. A self-rotating assembly is provided in the smoke inlet pipe, and a cleaning assembly is provided in the tower body. The cleaning assembly is driven by the self-rotating assembly. With the help of the power provided by the self-rotating assembly, the cleaning assembly scrapes off the salt scale adhered to the inner wall of the quenching tower. Through the continuous cleaning of the cleaning assembly, the gradual scaling of the inner wall of the quenching tower is avoided, which will not affect the normal slag discharge of the entire system, and at the same time, it is also avoided that the time-consuming and labor-intensive cleaning of the inner wall of the quenching tower after scaling of the inner wall of the quenching tower is avoided, which solves the technical problems in the prior art that the gradual scaling of the inner wall of the quenching tower leads to poor slag discharge and the time-consuming and labor-intensive cleaning of the inner wall of the quenching tower after scaling.

[0025] Example 2, based on Example 1, a quenching tower for incineration of medical waste, such as Figure 1 and Figure 2 As shown, the cleaning assembly includes a connecting shaft 4, a connecting rod 5 is connected to the connecting shaft 4, a scraper 6 in contact with the inner wall of the tower body 1 is connected to the connecting rod 5, the bottom of the connecting shaft 4 is rotatably connected to the bottom of the tower body 1, and the top of the connecting shaft 4 is transmission-connected to the self-rotating assembly. A self-rotating assembly is provided in the smoke inlet pipe, and the kinetic energy of the high-temperature flue gas is used to drive the self-rotating assembly to rotate, thereby driving the connecting shaft 4 to rotate, and converting the kinetic energy of the high-temperature flue gas into the power for the cleaning assembly to scrape off the salt scale bonded on the inner wall of the quenching tower, which reasonably utilizes energy and improves energy utilization.

[0026] Example 3, based on Example 2, a quenching tower for medical waste incineration treatment, such as Figure 1 and Figure 2 As shown, a first bevel gear 7 is provided on the top of the connecting shaft 4, and the first bevel gear 7 is transmission-connected with the self-rotating assembly. The first bevel gear 7 transmits the rotation generated by the self-rotating assembly to the connecting shaft 4, so that the self-rotating assembly drives the connecting shaft 4 to rotate.

[0027] Example 4, based on Example 3, a quenching tower for medical waste incineration treatment, such as Figure 1 and Figure 2 As shown, at least two connecting rods 5 are provided in the axial direction of the connecting shaft 4. The number of connecting rods 5 depends on the number of scrapers 6 provided on the connecting shaft 4, and one scraper 6 corresponds to one connecting rod 5. Preferably, four connecting rods 5 are provided in the axial direction of the connecting shaft 4, and the four connecting rods 5 are symmetrically arranged along the axial direction of the connecting shaft 4. The connecting rod 5 is connected to the middle part of the scraper 6, so that the scraper 6 is evenly stressed, avoiding the situation where the scraper 6 is stressed and damaged.

[0028] Example 5, based on Example 4, a quenching tower for incineration of medical waste, such as Figure 1 and Figure 2 As shown, the bottom of the tower body 1 is connected with a truncated platform 8, and the upper bottom surface of the truncated platform 8 is connected with a bearing 9, which is sleeved on the connecting shaft 4. The outer surface of the bottom end of the connecting shaft 4 is sleeved with a bearing 9, and the bearing 9 provides rotation support for the connecting shaft 4. The truncated platform 8 is provided to support the bearing 9 on the one hand, and on the other hand, the bottom of the tower body 1 is connected with the truncated platform 8, so that the waste residue concentrated on the inclined surface of the truncated platform 8 will fall along the inclined surface under the action of gravity.

[0029] Embodiment 6, based on any one of Embodiments 3 to 5, a quenching tower for incineration of medical waste, such as Figure 1 and Figure 2 As shown, the self-rotating assembly includes a rotating shaft 10 rotatably arranged on the smoke inlet pipe 2, the rotating shaft 10 is connected with a rotating blade 11, the rotating blade 11 is located in the smoke inlet pipe 2, one end of the rotating shaft 10 is connected with a second bevel gear 12, and the first bevel gear 7 is meshed with the second bevel gear 12. At the same time, the high-temperature flue gas entering the smoke inlet pipe drives the rotating blade 11 to rotate, and the rotating blade 11 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the connecting shaft 4 to rotate through the meshing of the first bevel gear 7 and the second bevel gear 12, and then drives the rotation of the scraper 6, so as to achieve the purpose of scraping the scraper 6 to scrape off the salt scale bonded on the inner wall of the quenching tower, and reasonably utilizes the kinetic energy of the high-temperature flue gas, and converts the kinetic energy of the high-temperature flue gas into the power for the cleaning assembly to scrape off the salt scale bonded on the inner wall of the quenching tower.

[0030] Example 7, based on Example 6, a quenching tower for medical waste incineration treatment, such as Figure 1 and Figure 3As shown, the rotating fan blade 11 includes a rotating body 17 and an even number of first curved surface blades 18. The even number of first curved surface blades 18 are symmetrically arranged along the circumference of the rotating body 17. The rotating body 17 is fixedly connected to the rotating shaft 10, and the first curved surface blades 18 are arranged facing the wind. The first curved surface blades 18 are arranged in the direction of the entrance of the high-temperature flue gas. When the high-temperature flue gas enters, it acts on the first curved surface blades 18, and the high-temperature flue gas pushes the first curved surface blades 18 to rotate under force.

[0031] Example 8, based on Example 7, a quenching tower for medical waste incineration treatment, such as Figure 1 and Figure 3 As shown, the rotating blade 11 also includes an even number of blocks and a second curved blade 19. The curved surface of the second curved blade 19 is opposite to the curved surface of the first curved blade 18. The second curved blade 19 is located between two adjacent first curved blades 18, and the second curved blade 19 is also arranged along the circumference of the rotating body 17. Two blades with opposite curved surfaces are arranged on the rotating body 17. When high-temperature flue gas enters, the gas acts on the first curved blade 18. The impact of the gas causes the first curved blade 18 to rotate. At the same time, after the gas contacts the first curved blade 18, it is rebounded to the second curved blade 19. The gas further impacts the second curved blade 19, promoting the rotation of the entire rotating blade 11. The curved surface of the second curved blade 19 with opposite curved surfaces is arranged in coordination with the first curved blade 18, which improves the utilization rate of the gas force, increases the rotation speed of the rotating blade 11, and further increases the rotation speed of the scraper 6.

[0032] Embodiment 9, based on embodiment 7 or 8, a quenching tower for incineration of medical waste, such as Figure 1 As shown, a connecting block 13 for wrapping the smoke inlet pipe 2 is provided in the tower body 1; and a slag outlet 14 is provided at the bottom of the tower body 1. The slag outlet 14 is provided at the bottom of the tower body 1, and the slag outlet 14 is located on the extension line of the inclined surface of the truncated cone 8, so that the waste slag concentrated on the inclined surface of the truncated cone 8 will fall along the inclined surface to the slag outlet 14 below under the action of gravity, and the waste slag is discharged along the slag outlet 14 and collected and processed by the ash bucket. The provision of the connecting block 13 further improves the connection strength between the tower body 1 and the smoke inlet pipe 2. A base 20 is provided at the bottom of the tower body 1, and the base 20 is used to support the entire tower body 1, and at the same time, it is convenient to place an ash bucket at the slag outlet 14 to collect waste slag.

[0033] Example 10, based on Example 9, a quenching tower for incineration of medical waste, such as Figure 1As shown, the spray assembly 3 includes a fixed plate 15, the fixed plate 15 is connected to the tower body 1, and a nozzle 16 is connected to the fixed plate 15, and the nozzle 16 is connected to the external solution pool through a pipeline. High-salt wastewater is placed in the external solution pool. High-salt wastewater refers to wastewater produced in large quantities in the production process of papermaking, chemical industry, printing and dyeing, and oil and natural gas mining, etc., containing a large amount of impurities and soluble inorganic salts (such as Na+, K+, Ca2+, SO42-, Cl-, etc.), and also contains high concentrations of organic matter, which is difficult to handle. If it is discharged into the environment without treatment, it will cause damage to the ecosystem. The quenching tower designed by this application is used to further utilize the high-salt wastewater, and the high-temperature flue gas on the inner wall of the quenching tower also treats the high-salt wastewater, so that the salt in the high-salt wastewater is precipitated, and then the salt is recovered. Preferably, the nozzle 16 is made of high-temperature and corrosion-resistant stainless steel to improve the service life of the nozzle 16.

[0034] When the embodiment 10 is implemented, the nozzle 16 is started, and the nozzle 16 sprays high-salt wastewater in the tower body 1, and then the high-temperature flue gas generated by the incineration of medical waste is introduced through the smoke inlet pipe 2. The high-temperature flue gas acts on the first curved blade 18, driving the rotating blade 11 to rotate, and the rotating blade 11 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the connecting shaft 4 to rotate through the meshing of the first bevel gear 7 and the second bevel gear 12, and drives the scraper 6 to make a circular motion along the inner wall of the tower body 1 continuously. When the high-temperature flue gas passes through the rotating blade 11 and enters the interior of the tower body 1, Finally, the high-temperature flue gas is rapidly cooled under the action of the high-salt wastewater, and the cooled flue gas is discharged along the smoke outlet 21 of the tower body 1. At the same time, the high-salt wastewater exchanges heat with the high-temperature flue gas in the tower body 1 and evaporates instantly. During the evaporation, the salt in the high-salt wastewater is precipitated in the tower body 1. When the salt adheres to the inner wall of the tower body 1, the scraper 6 that continuously makes a circular motion along the inner wall of the tower body 1 scrapes off the salt adhered to the inner wall of the tower body 1, so as to achieve the purpose of scraping off the salt scale adhered to the inner wall of the tower body 1 by the scraper 6, and the scraped salt is discharged along the slag outlet 14.

[0035] 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 quenching tower for incineration of medical waste, comprising a tower body (1), wherein the tower body (1) is provided with a smoke inlet and a smoke outlet (21), characterized in that: A spray assembly (3) is provided in the tower body (1), a smoke inlet pipe (2) is provided at the smoke inlet port, a self-rotating assembly is provided in the smoke inlet pipe (2), a cleaning assembly capable of scraping off salt scale is rotatably connected to the bottom of the tower body (1), and the self-rotating assembly is transmission-connected to the cleaning assembly.

2. The quenching tower for medical waste incineration treatment according to claim 1, characterized in that: The cleaning assembly comprises a connecting shaft (4), the connecting shaft (4) is connected to a connecting rod (5), the connecting rod (5) is connected to a scraper (6) in contact with the inner wall of the tower body (1), the bottom of the connecting shaft (4) is rotatably connected to the bottom of the tower body (1), and the top of the connecting shaft (4) is transmission-connected to the self-rotating assembly.

3. The quenching tower for medical waste incineration treatment according to claim 2, characterized in that: A first bevel gear (7) is provided on the top of the connecting shaft (4), and the first bevel gear (7) is transmission-connected to the self-rotating assembly.

4. The quenching tower for medical waste incineration treatment according to claim 3, characterized in that: At least two connecting rods (5) are provided in the axial direction of the connecting shaft (4).

5. The quenching tower for medical waste incineration treatment according to claim 4, characterized in that: The bottom of the tower body (1) is connected to a truncated platform (8), the upper bottom surface of the truncated platform (8) is connected to a bearing (9), and the bearing (9) is sleeved on the connecting shaft (4).

6. The quenching tower for medical waste incineration according to any one of claims 3 to 5, characterized in that: The self-rotating assembly comprises a rotating shaft (10) rotatably arranged on the smoke inlet pipe (2), the rotating shaft (10) being connected to a rotating blade (11), the rotating blade (11) being located in the smoke inlet pipe (2), one end of the rotating shaft (10) being connected to a second bevel gear (12), the first bevel gear (7) being meshed with the second bevel gear (12).

7. The quenching tower for medical waste incineration treatment according to claim 6, characterized in that: The rotating blade (11) comprises a rotating body (17) and an even number of first curved blades (18); the rotating body (17) is fixedly connected to the rotating shaft (10); the even number of first curved blades (18) are symmetrically arranged along the circumference of the rotating body (17); and the first curved blades (18) are arranged facing the wind.

8. The quenching tower for medical waste incineration treatment according to claim 7, characterized in that: The rotating blade (11) further comprises an even number of blocks and a second curved surface blade (19), the curved surface of the second curved surface blade (19) being opposite to the curved surface of the first curved surface blade (18), and the second curved surface blade (19) being located between two adjacent first curved surface blades (18).

9. The quenching tower for medical waste incineration treatment according to claim 7 or 8, characterized in that: A connecting block (13) for wrapping the smoke inlet pipe (2) is provided in the tower body (1); and a slag outlet (14) is provided at the bottom of the tower body (1).

10. The quenching tower for medical waste incineration treatment according to claim 9, characterized in that: The spray assembly (3) comprises a fixed plate (15), the fixed plate (15) being connected to the tower body (1), the fixed plate (15) being connected to a spray head (16), and the spray head (16) being connected to an external solution pool via a pipeline.

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