Quenching tower ash discharging device for solid waste treatment

Abstract

The utility model relates to a quench tower ash discharging device for solid waste treatment, which comprises a shell, the shell is used for being connected with the bottom of a quench tower, two groups of pneumatic opening and closing devices are arranged in the shell side by side up and down, and each group of pneumatic opening and closing devices comprises two opening and closing doors which are symmetrically hinged on the shell through hinge shafts. After the two groups of pneumatic opening and closing devices control the opening and closing states at intervals, materials falling into the upper part of the opening and closing door are discharged from the quench tower; the pneumatic opening and closing device further comprises an air cylinder and a connecting rod, one end of the air cylinder is hinged to the shell, and the other end of the air cylinder is hinged to a rocker arm fixedly connected with the end of one hinged shaft. The connecting rod is hinged to a rocker arm fixedly connected with the other end of one hinged shaft, so that when the air cylinder acts, the hinged shafts of the two opening and closing doors are driven to rotate, and then the two opening and closing doors move in a mirror image mode. According to the ash discharging device for the quench tower, the problems of high leakage risk and low ash discharging efficiency of a traditional ash discharging device for the quench tower are solved through structural innovation.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, specifically to a quench tower ash unloading device for solid waste treatment. Background Technology

[0002] In solid waste treatment, the range of 200-500℃ is where dioxins are most produced. The function of the quench tower is to directly reduce the temperature of the inlet flue gas from about 550℃ to below 200℃ through atomized water.

[0003] In existing technologies, to reduce costs, the production water used for quench atomization is replaced with lime slurry. Atomized lime slurry is used to remove HCl from the flue gas, and the effect is good. However, when the sprayed lime slurry removes HCl, an acid-base neutralization reaction occurs. The resulting large amount of salt and unreacted lime powder adheres to the inner wall of the quench tower. As the amount of ash adhering to the wall increases, the lime powder layer will collapse to the bottom of the quench tower under its own weight for ash discharge. This not only poses a significant risk of leakage but also results in low ash discharge efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quench tower ash discharge device for solid waste treatment, so as to solve the problems of high leakage risk and low ash discharge efficiency of traditional quench tower ash discharge devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quench tower ash discharge device for solid waste treatment includes a housing for connecting to the bottom of a quench tower. Two sets of pneumatic opening and closing devices are arranged vertically within the housing. Each set of pneumatic opening and closing devices includes two opening and closing doors symmetrically hinged to the housing via hinge shafts. The opening and closing states of the two sets of pneumatic opening and closing devices are controlled at intervals to discharge material falling into the upper part of the opening and closing doors from the quench tower. Each pneumatic opening and closing device also includes a cylinder and a connecting rod. One end of the cylinder is hinged to the housing, and the other end is hinged to a rocker arm fixedly connected to one end of a hinge shaft. The connecting rod is hinged to the rocker arm fixedly connected to the other end of the hinge shaft, so that when the cylinder is actuated, it drives the hinge shafts of the two opening and closing doors to rotate, causing the two opening and closing doors to move in a mirror image.

[0007] Preferably, the side projection of the housing is approximately inverted cone or rectangle.

[0008] Preferably, the housing is provided with a door stop, which is arranged in the closed state of the opening and closing door so that the opening and closing door and the door stop are in the same plane when the door is closed.

[0009] Preferably, the door stop is provided with a proximity switch, which is used to sense the position of the door.

[0010] Preferably, the connecting rod, the opening and closing door, and the hinge are all made of stainless steel.

[0011] Preferably, the inner surface of the door is provided with a wear-resistant layer.

[0012] Preferably, the edge of the door is provided with an elastic sealing strip.

[0013] Preferably, a guide plate is inclinedly provided inside the housing, and the guide plate is located above the opening and closing door to guide the material to fall in a concentrated manner.

[0014] Compared with the prior art, the technical solution of this application has the following technical effects:

[0015] 1. This utility model application solves the problems of high leakage risk and low ash unloading efficiency of traditional quench tower ash unloading devices through structural innovation.

[0016] 2. Specifically, this application improves ash unloading efficiency and effectively reduces the risk of ash leakage by employing two sets of pneumatic opening and closing devices, with each set of pneumatic opening and closing devices using a double-door mirror alternating opening and closing design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram illustrating the structural principle of the pneumatic opening and closing device in this utility model.

[0019] Figure 3 This is a top view of the structure of this utility model.

[0020] In the diagram: 10. Housing; 11. Door stop; 20. Pneumatic opening and closing device; 21. Hinge; 22. Opening and closing door; 23. Cylinder; 24. Connecting rod; 25. Rocker arm. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As a preferred embodiment of this utility model, see attached... Figures 1-3As shown in the figure, the arrows represent the direction of movement of the opening and closing doors. This embodiment provides a quench tower ash discharge device for solid waste treatment, including a housing 10. The housing 10 is used to connect to the bottom of the quench tower. Two sets of pneumatic opening and closing devices 20 are arranged vertically inside the housing 10. Each set of pneumatic opening and closing devices 20 includes two opening and closing doors 22 symmetrically hinged to the housing 10 by a hinge shaft 21. By controlling the opening and closing states of the two sets of pneumatic opening and closing devices 10 at intervals, the material falling into the upper part of the opening and closing doors is discharged from the quench tower. The pneumatic opening and closing device 20 further includes a cylinder 23 and a connecting rod 24. One end of the cylinder 23 is hinged to the housing 10 via a hinge seat, and the other end is hinged to a rocker arm 25 fixedly connected to one end of a hinge shaft 21. The connecting rod 24 is hinged to the rocker arm fixedly connected to the other end of one of the hinge shafts 21, so that when the cylinder 23 is activated, it drives the hinge shafts 21 of the two opening and closing doors 22 to rotate, causing the two opening and closing doors 22 to move in mirror image motion, that is, closing when moving towards each other and opening when moving away from each other.

[0023] In the above embodiments, the hinge shaft 21 can be mounted on the housing 10 via a self-lubricating bearing, with embedded lubrication in the bearing to reduce frictional resistance. The above embodiments, through the mirror motion design of two sets of pneumatic opening and closing devices 20, achieve rapid and controllable material discharge, avoiding jamming or leakage problems caused by uneven force distribution in a single-door structure. The linkage mechanism between the cylinder 23 and the connecting rod 24 simplifies the drive structure, reduces manufacturing costs, and ensures door synchronization through symmetrical motion, improving sealing and stability. Furthermore, the use of two sets of pneumatic opening and closing devices 20 arranged vertically allows for staged ash discharge, preventing excessive ash discharge at once from causing blockages in downstream equipment.

[0024] In a preferred embodiment, such as Figure 2 As shown, the side projection of the shell is roughly inverted conical or rectangular. A conical shell facilitates the natural accumulation of materials at the ash discharge port under gravity, reducing residue, while also enhancing structural strength and adapting to high-temperature or corrosive environments. A rectangular shell allows for direct connection to the bottom of a square quench tower, reducing installation complexity and making it suitable for space-constrained scenarios.

[0025] In some preferred embodiments, such as Figure 3 As shown, the housing 10 is provided with a door stop 11, which is arranged at the closed state of the opening and closing door 22, so that the opening and closing door 22 and the door stop 11 are in the same plane when the door is closed.

[0026] In some preferred embodiments, a proximity switch is provided on the door stop 11, which is used to sense the position of the opening / closing door 22. In this embodiment, the proximity switch monitors the position of the opening / closing door in real time, which can ensure that the opening and closing state is accurate and controllable, avoid leakage or misoperation caused by the door not being fully closed, and can also be linked with the control system to realize fault alarm or automatic correction, thereby improving the automation level of the equipment.

[0027] In the above embodiments, in order to improve the service life of the opening and closing door and to make it suitable for treating solid waste containing acidic or corrosive components, the connecting rod 24, the opening and closing door 22 and the hinge pin 21 described in this embodiment are all made of stainless steel.

[0028] In this embodiment, a wear-resistant layer is provided on the inner surface of the opening and closing door.

[0029] In some preferred embodiments, the edges of the opening and closing door 22 are provided with elastic sealing strips. When closed, the sealing strips fit against the door stop 11, and the bottoms of the two symmetrical opening and closing doors 22 are also tightly closed after closing.

[0030] In some preferred embodiments, a guide plate is inclinedly provided inside the housing 10. The guide plate is fixedly connected inside the housing 10 and is located above the opening and closing door to guide the material to fall in a concentrated manner.

[0031] It should be noted that in the description of this utility model, the air pipe, valve and air source used in conjunction with the cylinder 23 are common knowledge in the use of cylinders. As can be seen from the content disclosed in this application, this application does not improve this common knowledge technology, and it is widely used in the field of chemical equipment. Therefore, this application will not elaborate on the structure and principle of the supporting equipment.

[0032] In operation, by controlling the opening and closing sequence of the two sets of pneumatic opening and closing devices 20, the material falling into the upper pneumatic opening and closing device can be controlled to fall into the lower pneumatic opening and closing device. Then, the upper pneumatic opening and closing device is closed, and the lower one is opened. This avoids safety issues caused by process instability due to the collapse of ash on the quench tower walls, while also resolving environmental instability issues caused by poor ash unloading. Furthermore, the opening and closing time cycle of the two sets of cylinders can be controlled by programming, and the opening and closing status can be detected using proximity switches, thus achieving automatic control.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quench tower ash discharge device for solid waste treatment, comprising a housing for connection to the bottom of a quench tower, characterized in that: The housing contains two sets of pneumatic opening and closing devices arranged side by side. Each set of pneumatic opening and closing devices includes two opening and closing doors symmetrically hinged to the housing via hinge shafts. The opening and closing states of the two sets of pneumatic opening and closing devices are controlled at intervals to allow material falling into the upper part of the opening and closing doors to be discharged from the quench tower. The pneumatic opening and closing device also includes a cylinder and a connecting rod. One end of the cylinder is hinged to the housing, and the other end is hinged to a rocker arm fixedly connected to one of the hinge shafts. The connecting rod is hinged to the rocker arm fixedly connected to the other end of the one of the hinge shafts, so that when the cylinder is actuated, it drives the hinge shafts of the two opening and closing doors to rotate, causing the two opening and closing doors to move in a mirror image.

2. The ash discharge device for a quench tower in solid waste treatment according to claim 1, characterized in that: The side projection of the shell is roughly inverted cone or rectangle.

3. The ash discharge device for a quench tower in solid waste treatment according to claim 1, characterized in that: The housing is provided with a door stop, which is arranged in the closed state of the opening and closing door so that the opening and closing door and the door stop are in the same plane when the door is closed.

4. The ash discharge device for a quench tower in solid waste treatment according to claim 3, characterized in that: The door stop is equipped with a proximity switch, which is used to sense the position of the door when it is open or closed.

5. The ash discharge device for a quench tower in solid waste treatment according to claim 1, characterized in that: The connecting rod, the opening and closing door, and the hinge are all made of stainless steel.

6. The ash unloading device for a quench tower in solid waste treatment according to claim 1, characterized in that: The inner surface of the door is provided with a wear-resistant layer.

7. The ash discharge device for a quench tower in solid waste treatment according to claim 1, characterized in that: The edges of the door are equipped with elastic sealing strips.

8. The ash discharge device for a quench tower in solid waste treatment according to claim 1, characterized in that: The shell is equipped with an inclined guide plate, which is located above the opening and closing door and is used to guide the material to fall in a concentrated manner.

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