Two-stage heavy hammer type rotary kiln discharging sealing valve
By designing a heavy hammer-type secondary unloading seal valve, the gravity of the material and the heavy hammer automatically adjust the valve plate status is solved, and the existing equipment is easily damaged, high energy consumption and high failure rate in high temperature environments are achieved, and the effects of stable operation, low energy consumption and high sealing are achieved.
Patent Information
- Application Number
- CN202421495089.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing indirect rotary kiln thermal desorption inlet and discharge sealing equipment is easily damaged in high temperature environments, has high energy consumption and high failure rate, especially when there are hard impurities in the material, it is easy to jam and difficult to deal with.
A heavy hammer-type secondary unloading sealing valve is designed, which adopts main components such as adjustable weight hammer, valve stem, valve plate, valve body and installation plate. The valve plate is automatically opened by material gravity, and automatically restored to the sealing state under the action of heavy hammer, reducing vacuum drop and improving sealing.
It achieves stable operation in high-temperature environments, no energy consumption, better sealing, flexible adjustment of unloading frequency, and reduces failure rate and maintenance difficulty.
Smart Images
Figure CN222683670U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a two-stage heavy hammer type rotary kiln unloading sealing valve. Background Art
[0002] In the indirect rotary kiln thermal desorption process, most materials need to be thermally desorbed under the condition of slight negative pressure, that is, to keep the outside air from leaking into the rotary kiln cavity as much as possible while maintaining slight negative pressure in the rotary kiln, and at the same time to ensure that the materials inside the rotary kiln can flow out smoothly. It is necessary to prevent the outside air from flowing in and ensure the normal outflow of materials in the rotary kiln cavity. Under this contradictory state, star-shaped unloading valves, pneumatic plug plates, heavy hammer unloading valves and other air-locking unloading devices came into being.
[0003] Existing equipment and technical status: At present, the indirect rotary kiln thermal desorption inlet and outlet sealing equipment for soil remediation mainly adopts star-shaped discharge valves or pneumatic gate valves. Such equipment is driven by motors, which are often affected by high temperatures and have certain energy consumption. In actual operation, it often encounters stones, steel bar heads, winding ropes, branches, etc., causing jams, with a high failure rate and difficult to handle. Utility Model Content
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A weight hammer type two-stage unloading sealing valve, whose main components include: an adjustable weight hammer, a valve stem, a valve plate, a valve body, a mounting plate, etc.; when the valve plate is opened under the action of the gravity of the material, the vacuum of the system will drop rapidly. In order to reduce or alleviate this situation, we designed a two-stage valve plate; multiple mounting holes are arranged on the two mounting plates, and the valve body is provided with a middle crossbeam, on which a first-stage valve plate is installed, the first-stage valve plate is connected to one end of the valve stem, the valve stem is in an "L" shape, a weight hammer is arranged at the other end of the valve stem, the second-stage valve plate is connected to the inner wall of the valve body, the second-stage valve plate is connected to one end of the valve stem, and a weight hammer is arranged at the other end of the valve stem; in normal state, the valve plate is in a closed and sealed state, and it will automatically open when the material falls onto the valve plate and reaches a certain weight; after the material slides down, the valve plate automatically restores the closed and sealed state under the action of the weight hammer.
[0006] As a further solution of the utility model: a plurality of mounting holes are distributed on the mounting plate in a rectangular shape with equal intervals, and the mounting holes on the two mounting plates correspond to each other one by one.
[0007] As a further solution of the utility model: the valve stem penetrates the valve body and is connected to the primary valve plate, and the valve stem penetrates the valve body and is connected to the secondary valve plate.
[0008] As a further solution of the utility model: the first-stage valve plate is connected to the middle cross beam by a cylindrical pin, and the second-stage valve plate is connected to the inner wall of the valve body by a cylindrical pin.
[0009] As a further solution of the utility model: the weight and the valve stem are fixed by a limiting bolt.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] The structure is simple, easy to manufacture, and low in cost; it has no energy consumption, stable operation, better sealing than the first level, is not troubled by high temperature, and the unloading frequency can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 This is a bottom view of the utility model;
[0014] Figure 3 It is a front view of the utility model.
[0015] Notes on the figure numbers: 1. Valve body; 2. Mounting plate; 3. Mounting hole; 4. Primary valve plate; 5. Secondary valve plate; 6. Weight; 7. Valve stem; 8. Center beam; 9. Limit bolt. DETAILED DESCRIPTION
[0016] 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.
[0017] A plurality of mounting holes 3 are provided on the two mounting plates 2, and a middle cross beam 8 is provided on the valve body 1, on which a primary valve plate 4 is installed, the primary valve plate 4 is connected to one end of a valve stem 7, the valve stem 7 is in an "L" shape, a weight 6 is provided at the other end of the valve stem 7, a secondary valve plate 5 is connected to the inner wall of the valve body 1, the secondary valve plate 5 is connected to one end of the valve stem 7, a weight 6 is provided at the other end of the valve stem 7, limiting bolts 9 are provided on the two weights 6, the weights 6 and the valve stem 7 are fixed by the limiting bolts 9, the weights are detachable, and the weight of the weights can be adjusted according to the weight of the material.
[0018] In normal state, the valve plate is in a closed and sealed state. When the material falls on the valve plate and reaches a certain weight, it will automatically open. After the material slides down, the valve plate automatically returns to a closed and sealed state under the action of the heavy hammer. However, when the valve plate opens under the action of the gravity of the material, the vacuum of the system will drop quickly. In order to reduce or alleviate this situation, we designed a secondary valve plate. When there is less material, the first-level valve plate is opened first to discharge the material, which can reduce the drop in the system vacuum. When there is more material, the second-level valve plate will automatically open to meet the purpose of conveying a large amount of material. In addition, the first and second-level valve plates are unlikely to be opened at the same time, that is, only 50% of the conventional unloading sealing valve plate is opened each time. Theoretically, the sealing of the system is guaranteed to the maximum extent, while meeting the purpose of unloading, without energy consumption and stable operation.
[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A two-stage weight hammer type rotary kiln unloading sealing valve, comprising a valve body (1) and a mounting plate (2), wherein the valve body (1) is provided with mounting plates (2) at both upper and lower ends, characterized in that: A plurality of mounting holes (3) are provided on the two mounting plates (2), a middle crossbeam (8) is provided on the valve body (1), a first-stage valve plate (4) is installed on the middle crossbeam (8), the first-stage valve plate (4) is connected to one end of a valve stem (7), the valve stem (7) is in an "L" shape, a weight (6) is provided on the other end of the valve stem (7), a second-stage valve plate (5) is connected to the inner wall of the valve body (1), the second-stage valve plate (5) is connected to one end of the valve stem (7), a weight (6) is provided on the other end of the valve stem (7), and limiting bolts (9) are provided on both weights (6).
2. A two-stage weight-hammer rotary kiln discharge sealing valve according to claim 1, characterized in that: A plurality of mounting holes (3) are distributed on the mounting plate (2) in a rectangular shape at equal intervals, and the mounting holes (3) on the two mounting plates (2) correspond to each other one by one.
3. The two-stage weight-hammer rotary kiln discharge sealing valve according to claim 1 is characterized in that: The valve stem (7) penetrates the valve body (1) and is connected to the primary valve plate (4), and the valve stem (7) penetrates the valve body (1) and is connected to the secondary valve plate (5).
4. The two-stage weight-hammer rotary kiln discharge sealing valve according to claim 1 is characterized in that: The primary valve plate (4) is connected to the middle cross beam (8) by a cylindrical pin, and the secondary valve plate (5) is connected to the inner wall of the valve body (1) by a cylindrical pin.
5. The two-stage weight-hammer rotary kiln discharge sealing valve according to claim 1 is characterized in that: The weight (6) and the valve stem (7) are fixed by a limit bolt (9).